2 things I will agree with
zoning - this game is centered around zoning, from the fact that you have characters with multi shot attacks killing rushdown's 1 hit of armor on most specials before you can reach them, interactables, a lot of throws toss you almost full screen, clashes push you away, Sinestro's arachnid punch, superman's breath and on and on, it's like fighting Kenshi against half the cast. Yes everyone does have an answer to zoning, is it a good answer? Not really with some characters. But it's better than nothing I guess. Why do you think so many people flipped out about Scorpions teleport. Because half the cast has the ability to go pew pew pew against some characters then that stopped working. Yeah he got nerfed as he should have, he was as mindless as the "zoning" is against rushdown. This is a fighting game not paper, rock, scissors counterpick.
the strings - This seems to be a NRS thing, you make a character have one or 2 decent strings and everything else is filler. There's so many tournaments I've seen for MK9 that have people doing the same set up's over and over again because they want to win and why use the crap strings when you have 1 or 2 that cover all your bases? There should be a different tool/string for every scenario, not one string you can (or have to) use to win.
Yeah the game is young, yeah it's going to get patched more, but if we don't tell them what we don't like they aren't going to know. I would think they are smart enough to know what changes should be made and which ones shouldn't.