I like your confidence.
If this game is 90+ I'll freak out. Its harder for this type of game to achieve 90+ so it would mean its truly exceptional.
1. an obnoxious amount of review paragraphs and score contribution will be dedicated to "web slinging". so long as that feels good many other flaws will be forgiven. based on videos i think the web slinging looks really good.
2. "this type of game" is semi-irrelevant. spiderman will have a benefit where things like mad max do not in that "casuals" are already inclined to love the game even if it is a bad game. ..because spiderman.
i don't think this game will get many (if any) 10s. but the more casual review sites will be very forgiving of this game compared to other games on the market just because it is spiderman. i basically expect a crud load of 9s and a few 9.5s to bring up the average. few if anything will be below 8.
my opinion.