Putting myself in the shoes of a kid learning about computers, I find some of these phrases to be more clear, not less clear.

Two examples:

Allowlist and denylist are much clearer to a kid learning about computers than whitelist or blacklist. If you've never heard of whitelist before, it's sounds like a list of things that are white. If you've never of allowlist, it's pretty obvious what it means - a list of things that are allowed.

Similarly, mainboard is clearer than motherboard. Mainboard implies there's one main board. Motherboard could be more ambiguous to someone who's never seen the inside of a computer. Are there two boards, mother and father? Do boards somehow inherit from one another? Is there a grandmother board that's even bigger? Obvious to us, but not obvious to a kid learning computers for the first time.

Not saying these terms are better (there's a huge switching cost and the terms are less colorful), but do want to point out there are dimensions to consider beyond inclusivity. One benefit is better language precision.