After reading this chapter, and musing a lot, I feel I actually enjoyed this chapter.

I can understand how some feel it was a cop-out, but Naruto has achieved what nobody else has ever done. He defeated the greatest shinobi to ever threaten Konoha, and ended the conflict in a peaceful way. Anyone else would have just killed Pain right away if they were in Naruto's position - and the dead would have stayed dead.
Naruto put peace before revenge. How many people can do that? That has also shown how he and Sasuke are complete opposites.
While the dead have come back to life, Konoha still lies in ruins. Let's not forget that! While everyone is alive, they face a long and hard task to rebuild their homes, their defences, and their livelihoods. It's most likely that Konoha will still be heavily damaged when Team Sasuke shows up.
What Naruto has achieved is something incredible. He learnt the Sage Arts, defeated a seemingly unstoppable monster of a ninja, and brought about a peaceful solution that healed almost all of the pain on both sides - earning ANOTHER ally in the form of Amegakure. Naruto is going to find that his standing in Konoha has risen hugely. Fukusaku is alive so he can learn more Sage Arts (hurrah!), and now he knows who his family are!
I'm going to look forward to the next few chapters.

Hopefully we'll see Konan return in the future as the Kage of Amegakure?
Where my disagreement comes from is that all of that could have been accomplished without the mass resurrection. Naruto still defeats Nagato, ends the conflict peacefully, and put peace before revenge. The contrast between him and Sasuke still exists (Sasuke killed and is strill trying to kill the objects of his hatred). He still gains an ally in Amegakure. All that occurred prior to the resurrection.
Virtually everything you sited is accomplished and represented by Naruto's decision, and not Nagato's subsequent actions. The only thing Nagato's action goes toward is his redemption before his death; something that could have been accomplished without it.
The complaint from people like me is not that Naruto chose not kill Nagato. That's consistent with who Naruto is. In fact, I think the only character Naruto has killed in this entire series (with his own hands anyway) is Kakuzu. The complaint is that despite everything that happened; Nagato's assault, God Realm flattening the village and turning most of it to dust, and stabbing Hinata point blank, the only person who died was Nagato.
Rather the complaint stems from Kishimoto inability to kill and leave dead, the good guys. There was a trend prior to this of him appearing to leave people for dead, only to either save them at the last second or outright revive them. But in this arc, is was rampant. This leaves the question I asked in the spoilers thread: No matter what happens to one of the good guys, why should I ever believe anything of consequence will happen to any of them?
Hinata's was bad because of it's context in which it took place and because it was the 4th time it had happened with the Konoha's rookies.
Nagato's was bad because of its scale and that it was the third time this arc Kishimoto had done something like this. One of the popular defense's of Gaara was that he'd only done the resurrection bit once. I still remember the thread we had about that and that majority opinion was fine so long as this was the only time. Well, that defense was just blown away on a massive scale.
Ino could lose both arms and be gushing out blood and I'll think she'll live. Kiba could be stabbed straight through the heart with Sasuke's Lightning element Kusanagi and I know he'll make it. Madara could even cleave Chouji's head right off and I'd expect Tsunade or Sakura to suddenly discover Kakuzu's art and sew it back on just before he bites it. While this is deliberate hyperbole....the bottom line is, it doesn't matter what he does my default expectation will be they will all live. I won't sit there wondering if they'll survive. I know they will. There's no suspense. And that goes double with Daniee's point earlier with the destined child bit.
IMO, it's a cop-out because Kishimoto can use the pain and emotion that comes from the injury, death, and destruction of the things you love to mess with his characters without having to sacrifice anyone to do it (except for people like Chiyo (a total throwaway) and Nagato (a villain destined to die anyway)). It'd have been one thing if happened once or twice. It's another to keep doing it over and over.....
I hate to make a DMZ reference, but I think it works. The downside to constantly reviving the dead with the Dragon Balls is that it cheapened death to the point we would always know, everything would be okay in the end and no one but the villain would die. It kills the suspense, meaning, and drama that can be derived from it because the audience knows its not permanent.
Kishimoto hasn't been THAT bad (as Asuma and Jiriaya are still dead), but it's the same principle and the more he does this the closer he gets to that point.
The sad things is, I'd have liked this chapter, but for this. I like Nagato's parting conversation with Naruto, but I loath the fact that after all that happened, only Nagato died.