I glad that you think that the BRS 3000T is rock solid and most people on this site may agree with you (HYOH). That being said, people who visit this site are not your average purchasers of the BRS 3000T. With respect of the average user, here is the satifaction rating from Amazon. With 308 reviews, that’s a pretty good sample size.

Clearly 99% of the people are not fully satified, more like 17% are neutral to negative. As I said, common sense isn’t. You found the instructions useful, however; a vast majority of the population will not go to Alibaba and then translate the instruction,
I can see how Hikin’ Jim could give this a negative review as people use his site as a source of information. I think that the 17% neutral to negative review back up his position.
If the BRS 3000T were my product, I would be taking action to address the concerns and would not attribute problems to user errors. My 2 cents.

Is a $17.00 stove that weighs less than an ounce too good to be true?

