Thanks! That's the second reasonable answer I've got until now. It guess the distinction in "core engineering" and UX is valid and helpful. Adapting my point

Thanks! That's the second reasonable answer I've got until now. It guess the distinction in "core engineering" and UX is valid and helpful. Adapting my point to it: Even the UX may be inconsistent or even outright broken the resulting system is at least somehow usable. If the core of a system is a tire-fire nothing can work, and it makes no difference any more whether you have the nicest UX or not. One hint regarding the awful shortcuts: You could try to switch CTRL and ALT or META. That's even a common "one click" setting supported usually OOTB by the desktops. Swapping those keys was the one truly right decision regarding usability by Apple, which I welcome even not liking the rest of the macOS UX.