Spider-Verse was an animated film and Spider-Man 2 came out 15 years ago. When Spider-Man debuted in the MCU in 2016 Sony hadn't put out a decent Spider-Man movie in 12 years.
Also, spiderverse was amazing because Sony gave the creators freedom to do it.
... Because it's a smaller, far cheaper, Animated side movie starring MM (a character they have never shown interest in bringing to the forefront in live action iirc. Hell, they're far more interested in SpiderGwen be it live action or animated and after Spiderverse they jumped on the chance to spin her off into an all female crew).
Live action SM is the biggest thing they got and they have shown that they are just not willing to or just can not stop dicking with it when unsupervised. It's what ruined SM3 and started a downward trend that was only fixed by HC.
Anyway, am I the only one who remembers the EDM in ASM? How terrible Peter was in those movies? The scene where Eletro gets his powers and they do a close up to show that his transformation fixes the gap in his teeth??? Those movies were straight bad and Sony sucks so bad at managing the budget that making 700Mill barely made them a profit which earned it the title of "Flop". Marvel has made them a far cheaper 1bill-highest-gross-they've-ever-seen movie because that's what they do.
If they want to take that chance again it's on them. I don't think it's a smart choice personally. I can't even wrap my mind around how this spidey would work in a non-MCU world ...
I can't speak about deals being turned down or w/e, IDK what Disney was offered as a "maybe it happened, maybe not?" counter to this so it's silly to say "SEE! Seems like Sony tried to negotiate but Disney held firm to this number!".
Also, for people who keep pointing at Venom ... that movie is hot garbo which makes it's sequel's success unpredictable imo. If you look back on that movie and think "man, that was trash" who knows if you'd come back and give it a 2nd chance later on. History has shown that people are willing to turn up for shitty sequels to shit movies (Transformers) and it's also shown that people will ignore sequels to trash movies that did well. Who knows.