Ok first off, QA has nothing to with balance, at least not directly. QA is more about bugs and general functions in softwares. That job is for the fighting/gameplay part of the dev team, not the QA. Secondly, MKX was never unbalanced, people just complained about everything from the start, which is what they did with both MK9 and IJ1, and now with IJ2 as well, instead of going into the lab before they complain. Even if something is OP, at least give it time before they patch it out. And like I said, every other company does that stuff, and in the case like SF2, which
@Shaka brought an example of, people had to deal with really OP stuff in that game that is now 26 years old and yet people don't complain, but now, Capcom, the so-called all mighty god of fighting game companies, also gets complains from people about SF5, and not just in the casual department, but also in the gameplay and competitive ones, and even in the general function one (like with the airplane stage that gave some people motion sickness). Hell they even put a rootkit in the PC version of SF5 and they had to take it out. You didn't see anything like that in the PC version of any NRS game, and these ports were ported by High Voltage Studios, rather then being developed by NRS like the console version of their games.
But at least when it comes to the gameplay or balance, people can't complain about the game without checking stuff in the lab, yet they do it even for SF5.
Every company is gonna make mistakes sometimes, but they know how to do their job way better then almost all of us, if not all of us. Coding a game and balancing a game is a lot more difficult then it seems, but let me tell you, it is very hard. I worked in QA in the past, and I know first hand that QA and developing softwares is hard, and it's also true for balancing games from any genre, including fighting games.
I'm not saying the Iron Galaxy is a bad company, but they aren't better then NRS, it's more likely that the gameplay and style of KI is more suitable to you, which is fine, but you can't put the blame on NRS. I wanted to play UMVC3 competitively and I dropped the game because I couldn't handle the speed and long combos in it. Did I made compliment threads on MVC forums begging Capcom to reduce the combos and speed for it? No, I just went back to MK9, because I would rather spend the time on the game that I love and can play from a company that I love, rather then ruin other games for everyone else who can enjoy them.
So at the end of the day, NRS are doing a great job and only improving with each game in every regard, and they actually do listen to complaints from fans, and if it is truly a problem, they will fix it, which is more then can I say about other companies (cough* Capcom). But you also need to know WHEN is the right time to complain, and DO NOT DO IT JUST FOR AMUSEMENT, because that is just wrong.