I'm not calling him a terrible player. Obviously, other people were playing her too and he was the one that managed to put the pieces together correctly, while holding onto his composure at high level play. That definitely takes skill. But to not have accomplished anything after that, and he did try quite a lot, says something about the state of Phoenix when he used her.
Also, you seem to agree with my point that the MKX is relatively balanced at this point (i.e. no insane highs or lows), so I'm not sure what we're arguing about, besides one example I chose to use.