MacOS's system is a better system that will never be adopted because there no will (just suck it up as you say), market pressure or authority that would impose it.
And when I can't or don't want to do that, I right click and choose Copy.
If I want to use another operating system - Windows or MacOS, it drives me batty that I have to keep going around copy pasting things.
I tend to agree with you that having a difference between Ctrl and Command is nice. But it doesn't actually solve the problem - it works _because_ MacOS is a minority, the last holdout.
In your web browser, Cmd-A will select all the available text but Ctrl-A will move your cursor to the start of the line. In your terminal, perhaps Cmd-A will select all the visible text but Ctrl-A will increment the number under the pointer (since you're running VIM in it).
If the Meta key hadn't died of death and Linux developers had kept expecting it to be around, there could also be clashes between Cmd and Meta.
For example I can type Ctrl-b while editing the URL in the browser omnibar to move the cursor back a character or alt-b to move it back a word, just like you can in the terminal and then use "Win"-b to bookmark a page.
And your command changes the keys you use for moving the cursor in the terminal.