Why do so many people object so vehemently to the question?
I personally don't have much trouble with the difference between calculator and telephone keypads; I can switch between them without much mental effort. (I can also switch between vi and emacs, and between bash and tcsh.)
But on every system I use, one of the first things I do is figure out how to remap the caps-lock key so it acts as a control key. In decades of effort, I've never gotten used to having the control key in a position other than immediately to the left of 'A'. If it works for most people, that's terrific, but it doesn't work for me.
But the OP does have a problem with it. The "destroys muscle- and spatial- memory" part seems exaggerated, but it may well be accurate *for the person asking the question*.
Different people have different mental models and usage patterns. Devices and software are supposed to be designed for users, not the other way around.
It's not a stupid question at all.