On my old Thinkpad X1 Carbon, the Caps Lock key was replaced with Home and End keys. I thought it was a brilliant idea, although I immediately remapped them to Backspace and Control respectively. The laptop also had a primitive touch-bar in place of the function keys which I actually rather liked, although the implementation was lacking. (And, unlike Apple, they kept a physical Esc key!)
Unfortunately, both of these changes were not particularly popular. I think people only disliked the Home/End keys in place of Caps Lock because it was weird and different—I saw a lot of whining online, but nobody ever complained about not being able to use Caps Lock any more!
To some extent, I see where people are coming from: I regularly use at least two different external keyboards as well as my laptop keyboard, so it's hard to get used to a weird layout in just one place out of three. I'm an early adopter at heart and willing to power through the inconvenience for what I see as a better design but I also understand that it's too much bother for other people. (And, honestly, the upside isn't that big!)
On later generations, ThinkPad switched back to a more standard layout. I wouldn't be surprised if Apple wanted to avoid a similar reaction in changing the keyboard layout too much, especially since their touchbar was already a big enough change to stir up controversy.