Backdash has invulnerability frames and there are some characters with realy good dashes like B. Adam , Shazam , Cyborg but also some that dash like crap - G. Lantern.
People are spoiled and casual.I like the Deathstroke tears and i hope NRS don't touch him.He is strong character but so are other few.Noone cares about the opinion of some random online noobs who abuse the lag and spam.
You are right about that and i think he will be garbage if they touch him but i hope NRS will listen the pro people now not the bad people who cba learning.
Deathstroke is fine , sadly a big % of ppl who will never be good use him and just abuse online giving him bad reputation as ''imba''.Overall the game is balanced but i expect some characters to get damage tweaks next patch(Black Adam , KFrost , Grundy)!