With all the craziness going on and the absurd levels of power that these ancient god-like beings, all of whom have one common goal in mind, to see the world brought under their control via the Tsukuyomi. How do you manipulate the hearts and minds of those you're intending to have become part of your collection of minions? By appealing to their base desires, as completely and explicitly as possible, while abiding by the exact circumstances of the universe around to make it seem believable and not allow anyone to question it. Their complacency overrides any notions of common sense.
Hinata's ultimate desire to see a future with Naruto is a prime target for the IT. Tsukuyomi doesn't have to abide by the same limits concerning time and space as the normal world does. There could have been a time lapse in the decades for however long she and the others have been trapped in the illusion. Keep in mind that Mei's dream depicted her accomplishing her goal of marrying someone. Relationships and marriage don't happen overnight (unless it's NH and SS from the "spoilers").
Again, it's just too easy. There has to be more underneath it all that we're just not getting.
Exactly... I mean the kids really make NO SENSE. SK alluding? Weird names? Sakura looks more like Kushima than ever but she is married to Sasuke because...what? Naruto gave up?
Come on, it makes NO SENSE!