Other characters have to struggle to get pull them off, with raiden saying its simple would be an understatement. Evil Cole has a simple confirm but he isn't a combo heavy character, in a FFA scenario there isn't much he can do but lay back. Raiden has SEVERAL confirms. All of them simple and all of them quick.
E. Cole just avoid his Giga Punch. And try to kill him when he is using his lvl 1 on someone else. Also try to knock him away from people so he cant use his punch on other people. Especially if it is Rodrigorh.
I agree Sly is not OP at all. Raiden however, and this is coming from someone who plays him extensively.... He has way too many kill confirms. The thing is tho, when you face people who can actually deal with them, you will have a hard time getting kills with them