Only things i would correct imo are some corner bugs where the invisible barrier kicks in , Paulo itself spoke about it that they had to choose the lesser evil since there was another issue with corner mechanics that was worse , i can understand that and TBH corners have some kind of fucked up situations / bugs in 90% of FGS.
Other than that i don't mind 50/50 but rather some moves with low risk / very high reward ( let's bring some examples: Trident Rush , Batgirl b2u3 / j2 and general corner damage+meterless vortex , Banes' cooldown on Venom and recovery on command grab , MMH orbs startup/recovery and trait cooldown , Zod IAZB , Superman corner damage+OTG ) wich is not news in fighting games as anything i've played had some VERY good moves / specials that restricted the meta to less meaningful choices.
That applies to MK9 , everyone loves to talk about footsies but isn't more of the stuff i've described what lessens the game enjoyment?Or the 50/50s debacle , hell in MK9 characters will literrally CHIP you to death with anything no matter how you blocked high or low ( examples : KL 21212 = 10% meterless chip and hit confirmable , JC f33b3 6% and neutral after it , Kenshi anything into EX SC into another EX SC /SC , Freddy zoning , Sonya d4xxMS f1 advantage on block , Kitanas 112xxEX cutter did 10% or more and it was neutral on block , Kabal NDC frametraps and so on )..... is that any better than a 50/50? ( wich some deny you can backdash a lot of these free 50/50 after jumpins , or are much more recognizable when you know that knockdown setup ) And not everyone in MK9 had Sonyas EX Cartwheel to get out of pressure , actually 80% of the cast had to deal w bs frametraps+chip because they didn't have armor ( or lacked decent reward on it ) but in spite all of this MK9 footsies ( or dashblocking a lot with a little walking as i would actually explain it ) are considered god on earth and the pinnacle of FGS.
Go figure.
Also IGAU is fun to play , hold dat.
( sorry for the rant hehe )