You're absolutely right about that Riko. I bet that is because of the most players (usually the casuals) playing online don't wanna step up their game or wanna learn how to properly win the match against those in which the match-ups are in the opponents' favor.
And I forgot who said this in the posts before, but you definitely can't sleep on Lex as he is getting around lately. I'm surprised I still hardly see any Cyborg players, even way before the very first patch ever came in. If J'onn is announced as the next DLC in the 2nd season DLC batch, I'm dropping Ollie for him in my 3rd slot of mains (1st is Hawkgirl and my 2nd is Green Lantern).