It's so, so much more than that. Even if the game had no bugs, it's nothing like what it was presented to be. And no, not by the 'fanboys' but by CDPR themselves.
I'd probably have bought the game on discount if I knew it was, much like Witcher 3, a mediocre game in most ways other than visuals, and in some ways actually a step down from their previous title.
But I bought this one on preorder because it was presented as not just 'The Witcher 3, but Cyberpunk and wonkier in most ways', but a game that would do an open world well, and so much more.
Normally I don't preorder games, but I gave CDPR the benefit of the doubt. The fact that Sony, of all companies, is actually offering refunds, should make it clear that this game is terrible. It's fine that you enjoy it, but why try to argue it's all 'blown out of proportion' or that 'fanboys expected too much'. Can't you just enjoy the game without needing validation?
I'm interested in preorder culture. Did you preorder to support the development financially, or did you preorder for some kind of bonus or other personal incentive?
If I'd guess any better they weren't expecting this blowing out of proportions for that...