There are many layers to reviews. The utility of a review is largely determined by the level of trust associated with that reviewer. I won't even get into the specifics of that because it's a touchy subject.
Another factor to consider is the uniqueness of our preferences and ears.
Either way, the oddity is is that most reviewers consider the AS10 decent but a lot of the purchasers (not mutually exclusive but..) have found it disappointing. Personally, I don't own an AS10 but I've heard it and given my impressions.
SN: Thank you @antdroid for your measurements and review. You share similar sentiments (not without some contentious points though) on the AS10 but I found it odd that your conclusion was different. That probably came down to personal preference.
My review was trying to be objective as much as possible since it is not my normal sound signature. I prefer neutral/bright signatures but as something that is on the warmer end of neutral, I still find it very good for it's price range. I don't try to hate on everything unless its absolutely warranted. My personal preference would be the Tin Audio T2 if I was going to get an IEM in this price range. It does what "I" like the best, but I think many people will enjoy the AS10 as well. I point out a lot of flaws with it in my "review" but that's because I'm trying to be honest.
At the end of the day though, this is still a budget headphone, so I can't be overly critical. I hope people aren't finding the flaws I am writing about in my "reviews" as fatal flaws. I will write that if it really was (for me ZS6's treble was a fatal flaw for me as much as I tried to eq it, and use 20+ different tips to get it working because it has miles and miles of potential!)