I think its all to easy to fall into the trap that if a few people have a problem, then all those models get tarnished with the same problem. Elsewhere, Accurascale said they had sold 18,000 class 37s. In this day and age, thats a lot. Even a low fault rate with them can mean many unhappy customers, all too eager to vent their (understandable) frustration where they can.
The reality might be that they are much more reliable than a manufacturer who might only have sold 1,000 or 2,000 models, but has fewer complaints.