This was exceptionally well written and honestly, I believe you 100%. I see the reviews to The Last online and my only reaction is, "How can you be satisfied by this in any way as a Naruto fan?"
Pairing wars aside I felt like I could honestly relate to Naruto - I was a sad loner growing up myself and for the entirety of the manga I was pulling for Naruto to succeed at all his goals. The end could not be considered the end, when we look at Naruto's goals: to be respected, to have friends/family, to have Sakura acknowledge his love, to be hokage. What out of any of this is resolved? He earned everyones respect after defeating Pain, including Sakura's, but it is all destroyed by the crappy father/husband/drunkard he became. His great love for sakura was played off as rivalry, even with all the proof in the manga showing otherwise, his 'family' is nowhere to be found - Iruka is MIA, Sasuke left right after 'returning', Sakura is busy playing housewife to a man she hasn't seen in 12 years...
and the biggest 'eff you' to the Naruto fandom is the fact that we never get to see Naruto achieve his #1 goal. We don't even get to see him become hokage, his crowning achievement, his moment of glory and the realization of all his hopes and dreams. Instead we get to watch Naruto and Hinata be forced together through some contrived and horrendous writing. Instead of making a kitten movie revolving around a side character they could have at least shown Naruto getting his title and finding a way to introduce the Naruto/Hinata pairing that way.
They completely destroyed Naruto and everything he stood for, and I want to bash my head against the wall every time I see a Hinata fan saying 'this was a great movie!'