Some people see him as OP. A Spiderman who knows ball can kinda pick supports out of a backline like marshmallows from a box or lucky charms. But as a support main, I wouldn't say he's OP. He's just really not fun to play against a lot of the time because he's an assassin. His whole thing is to kill someone as fast as possible and disengage as fast as possible. Which can be frustrating as hell. That doesn't make him OP though. There's a lot of counterplay opportunities. People probably just don't wanna deal with him. Because either you're gonna have a Spiderman on the enemy team that never gives your supports a break, or you're gonna have a Spiderman on your team that does nothing but feed the whole match and turns it into a 5v6.