On the subject of the balance right now.
Honestly? It really doesn't matter what the game is like today.
The game is like 3 months old, people do not have enough experience with anything yet, dropped BNBS, people falling for stupid gimmicks, ignoring stage hazards(how to use them ,and how to avoid them), no matchup experience. Like 80% of the players still refuse to pushblock or clash, and if they do remember, they just try and use it as a comeback mechanic and go all in.
Then their is a second season pass, and 4 more characters, who knows what they will bring. Manhunter already looks kinda crazy, he joins the special club with Batgirl and Scorpion with his anti zoning teleports.
With those 4 characters, there will be at least 4 more balance patches, and those patches could change things drastically, there are a bunch of characters that are just teetering on the edge of being really good, and just need one or two good buffs. Except for the wakeup change, every single patch has improved the game for the better.
Now I'm not saying you shouldn't voice your concern and just have a wait and see attitude, but the hyperbolic overreactions to everything is just getting silly.
It's a shame it's almost impossible to have any kind of civilized balance discussion anymore with out it turning into a giant flame war of personal attacks on other users.