Probably all my dislikes about the game comes from recent online stability problems and hitbox issues. I wish the game were consistent on its universal mechanics. Wakeups and flawless block reversals are the best example. Some characters wakeup U3 can anti air, some cahracters U2 are not anti airing basically anything and are easily stuffed by jumpins. Some characters can U2 flawless block reversal basically any gap, the other U2 cannot reach so they cannot launch punish some crucial gaps. Some of those reversals are safe, some are unsafe and I can't really discover the logic behind this.
The other thing that really grind my gears is when sometimes you duck a grab and D2 whiffs because grab recovery animations put some chars in crouching state.
I don't get it why some fatal blows does more damage than the others. But my biggest wish is that all of them were just straight death on block from basically anywhere on screen. The fact that some characters can just throw it and say fuck it and if they fail they will get it back makes neutral game absurd.
I don't really thing nuances of the game and game depth should came from making supposedly universal mechanics a hot mess. I think the game is really great but it's way less polished in those aspects than Injustice 2 on release. Don't get me wrong, Injustice 2 had a lot of hitboxes issues that survived until game's funreal, but in direct comparision MK11 seem a way more rushed and less polished.