Tell that to the people literaly crying tears of joy today across the streams.Not really, not at all. Sora was always the least interesting thing in a fantasy game with mickey mouse, donald duck, goofy, the gummy bears, etc etc.
Simon belmont was always an iconic badass with a chain whip hunting dracula. He was the star of the show. Sora is just generic nomura final fantasy stand in. He's pretty much just a player avatar designed to be vaguely familiar to people who played FFVII. He worked well within the context of disney characters but removed from that, I don't see the appeal at all.
I mean, I get that kingdom hearts is a popular franchise but....would it have been popular without mickey mouse?
nope.
Come on... Your bubble isn't everybody's bubble. I don't care that much about Sora but I can at least understand the why of the immense excitement: nostalgia, connection to KH games, protagonist appeal, iconic look etc.