Competitive feedback in general is in a pretty ridiculous state. It's extremely difficult to get it in the first place, and when it is offered, it's often maddeningly vague or nigh useless (eg, "I don't like this map"). There are exceptions, such as ScorpioRising and hooky, who do try to help mappers with solid feedback and getting their maps played, but these exceptions are few and far between.
I loved the idea of making a map for competitive, but I've given up on it. Final straw was some guy who said I could not possibly make a competitive map without playing competitive myself, like I'm too dense to understand feedback or a demo, or the fundamental differences between pub and comp play. I guess maybe, somehow, I would just magically develop this insight after getting owned in an entry level match.
Competitive players seem to be very entrenched in an "Us vs Them" mentality. Maybe it's due to the anti-comp nonsense that happens on SPUF, but whatever the reason, it makes creating maps for them very difficult.
So really, the commentators are only a symptom of the bigger problem IMO.