Oh people noticed the "world building." The Gungans, the Babylon 5-esque Jedi, Two-Headed Announcer, Dex Jettster, Ben Quadinaros, other Pod Racers, and so on. It was not embraced by the masses or diehard fans the way you're making it out to be. I know because I was there Gandalf. I was there 3000 years ago...I never experienced any of that. Yeah, it was fun to dunk on the PT, but people genuinely liked the content that surrounded it. Maybe not the PT itself. Whiny Anakin, dumb reasons, rished plots; sure, I remember. But people read and pulled the comics, the books; the games of that era are classics. People genuinely liked Star Wars. They did say "oh but the worldbuilding"; that's why it blew up. Maybe we frequented different forums. The diehards are as important as the normies, and my experiences were wildly different. I think the difference here is that you're focused solely on the movies themselves and don't see SW as this hugely multimedia project. Which is fine, everyone has their own preferences and canons and whatever. I'm just not like that. I take it as a whole.
Like I said, this is a cyclical discussion as we're coming at it from completely different POVs.
And I know because I was among those so upset about all those elements yet I was also the guy trying to find anything I could to appreciate about those films because I so wanted to love an entire new trilogy of SW films. No I didn't read the novels or the comics or play many of the video games but I didn't care much about the EU media for the OT either. And while there were people who openly liked the prequels, whenever I'd try and find anything to appreciate about them I faced just as much pushback as you and others are giving against the ST right now.
Are you and I going to agree on the ST, PT, or possibly even the OT? We very well might not. It doesn't change the fact that the prequels were loathed so spectacularly that the actors considered suicide or turned to lives of crime and Lucas himself didn't even want to be involved with making the final trilogy due to the fan backlash and yet they *still* are looked at favorably by many today. If that doesn't sway you then by all means, predict the future. I've learned that that's not so easy a task.
I'm just glad that I've reached a place where I can pretty much find things to like in all eras of SW, even the ridiculous Looney Tunes Fett show we're getting now, lol.