It would be more like saying that everyone should be calling your home an El-Gaz home because you got central heating from El-Gaz, even though your home is not owned in any way by El-Gaz... but calling it that would suggest it...
Really, if Stallman had ever suggested that Minix should be called GNU/Minix because of the full suite of GNU tools that it used to come with, Tannenbaum would have probably dropped their use almost immediately (he eventually did anyways, but if it wasn't using the GNU tools back when Linux was first being developed, there's every likelihood that Linux wouldn't have been dependent on GNU tools either, if it had ever been developed at all).
And besides, everything else that uses the GNU project name in its title is at least intended to be strongly affiliated with the GNU project, if not actually *part* of the GNU project itself. Linux uses the GPL, and most distros use GPL tools, but Linux is *NOT* a GPL project, nor it is really affiliated with it.
I can't see any religious reason to ban math
I was puzzling over this for a while myself, but then I considered that it may be because it includes concepts like infinity... and even merely acknowledging the existence of such a thing, and even though it is purely an abstract concept, it may be considered tantamount to challenging the infinite nature of Allah, and thus not something that should be taught.
I don't argue that they sell, but really... if they were just selling the vehicle, it would cost half of what it does.
Tesla, and Mercedes, can charge what they do because there are enough people out there that are willing to pay top dollar for a brand name.
In Tesla's case, it's also because it doesn't really have a competitor that offers anything resembling the same automobile features... all the other EV manufactures can't boast anything close to Tesla's range, and most look like crap (and the few that don't have abysmal range, not good for anything but commuting, and if I could afford to own a second car, I would be able to afford to own a Tesla in the first place).