Anyone comparing the post-TFA glow to "people thinking they liked TPM at the time" is baffling. Opinions and all that, but still...everything I wanted was in this movie, and then some.
I can remember being 21 when TPM was released, being as hyped as anything, ROTJ was one of the first films I saw in the theater as a child and Star Wars was most definitely my favorite film franchise growing up.
I LIKED TPM and while realizing it made some odd story choices and badly needed an editor, I mostly chalked up my overall indifference to the movie as having outgrown Star Wars. The only moments in TPM that got a "woah" from the audience was cutting through the door with lightsabers and the duel with Maul. The only chuckle was when Qui Gon tried and failed to mindtrick Watto. I saw it twice in the theater (including opening night) and the rest of the crowd's reaction was "meh" both times. No cheers or standing O at the end.
Fast forward 16 years and we live in an even more cynical world than we did then. TFA immediately sucked me in and had the crowd eating out of its hand the entire time. So many crowd pleasing moments, so much more doing and not telling compared to the PT. I went back the next day and it was even better without the sensory overload of having 2 hours of new Star Wars thrown at you. I've seen it three times and it totally holds up. My enjoyment is not solely because of the return of the classic characters - I've found something relatable and enjoyable about the new trio and felt none of that attachment to the PT characters, and look forward to seeing where they go next. It's incredibly weird and refreshing to not have an idea of what's to come in a Star Wars movie - you had an idea of what to expect in the subsequent PT films. To bring it back, TPM did not improve on subsequent viewings, it just got more boring, especially in the Tatooine scenes.