What imho is unfair here are the guys ranting against Emanuel. I assume those of you haven't watched both the videos in full length (or any other videos from him).
First there was a review where he talked in general about GSX. Yes he also talked about the minor bugs, but said himself that this is nitpicking as it really isn't that bad. Overall the review was quite positive.
The video above is the second video. Yes he picks again in an ironic way against those bugs. But this wasn't the reason why he uninstalled GSX. The reason is that he couldn't finish a flight because of the constant crashes.
While I myself can wait for those minor bugs to be ironed out (and I'm sure most of the rest of us can as well) those are major flaws from the view of immersion. They are technical minor, but e.g. pax walking on a jetway while full compatibility with airports has been advertised? It might be a bit harsh, but those minor bugs are so obvious that I wouldn't expect them in a final release version (e.g. the constantly closing menu).
I like GSX and it is one of the addons I hoped most for, but currently it's just unusable because of the crashes. I hope the bugs get ironed out soon, although I could live with them for now and the communication with the devs improves as to be more open to bug reports.
Regarding the free review copy: Why shouldn't somebody address problems with a software (minor or not) just because it was a free copy? That would be totally biased if only the good attributes would be pointed out.