Well, I see your point but you are using examples that voluntarily circumvent Apple's established, system-wide shortcuts.

Fortunately for us and developers, setting custom shortcuts for different commands is still supported. But this allows for devs to bypass default shortcuts.

I'm mostly using command and option and shift when I navigate in text, and it's a bliss to do so. On Windows, it's erratic and you have to use the Home/End keys to have the same results.

Anyway, minor gripes.