I think sahuang is pretty qualified for judging this map, at least they're still beatmap nominators who surpass the so called test. You can't say that one's not good enough to judge a map just because one doesn't map that kind of music frequently, or based on his rank... etc.
Anyways, I do believe that bns are the ones who pushes maps forward, not Quality Assurance Team. They provide their opinions and push them when they think the map is ready, and so do we. If you think this map still requires some improvement, just post your suggestions here. That's the truth of "qualified map", right?