So I don't see anything particularly surprising.
There are many reasons why guys would ignore mediocre reviews.
I will be makign some assumptions as I'm taking some guesses here but I think they're reasonable enough.
First, mongers generally prefer looks over service. There are definitely exceptions like myself, who is relatively young (at least for this hobby) and prefer great service over anything else but for majority of people it seems like a great bod and face trumps service. Most mongers don't seem to want hardcore vigorous porn-like sex. They seem to want vanilla sex with an attractive provider.
So it makes sense if the provider is rated highly in those areas people will still see her. Some mongers will read the reviews and then be willing to take the chance. Or think they can somehow influence the provider to be better. Overconfidence can always be a detriment.
I've been in those shoes before, just on the other side. I'd read a few reviews with low f/b scores but high service scores and decided to take the plunge. Many times I was like yeha great service and I had a great time even tho f/b is weak.
And few times I was like oh hell no this is code red, as service has to be near immaculate to make up for THIS degree of unattractiveness. And surprise - it almost never is.
I suspect it's similar concept in play here. Some people take a chance despite the reviews thinking their sesh can go differently.
Whats that Arrested development quote?
"No, it never does. I mean these poepe somehow delude themselves into thinking it might but.... but it might work for us"
I will also say, I may be wrong, but as someone who dabbled in bdsm community on fetlife pre covid, even tho I'm never a sub or into being one, there is a big difference between being dominated during a fantasy session, and having your time cut or being rude outside a session. I don't want to speak for everyone, but my understanding that virtually no one likes that... Role playing and being unpunctual, rude mess are two different things.