Well, the fact of the matter is that the information provided isn't clear enough with its sources, so we must have doubts about the reasons. All of it is simply throwing shit at the wall to see what will stick.

(If you hadn't said "like this", I would have copypasted it… ;-) )

Yeah, most bots purpose is to spoof what machine and browser they are using for access. So while the many bots are supposed to be spoofing Windows and such, who knows what percentages are getting detected as not. We don't have the data