What a great discussion! I personally can’t agree with you completely and I have my reasons for this.

I deal with English every day, but I am a foreigner, and had to learn this 'alien system' intentionally, in order to be able to talk with people all over the world and be able to understand the media that uses it. I think you can still see in the way I build phrases :)

But this give me an opportunity to see this language as it is, a bunch of fossilized exceptions, weird rules, peculiar inclusions — but alive enough to be learn and taught, ever changing and malleable. I don’t say it’s a unique skill and it requires learning different languages. Still I use this approach to analyze and scrutinize everything, which is handy as a designer’s perk.

And pure purism is a dead end, Leon, I am sure of it :)
I have no guesses about your native language, but let’s look at the comment you’ve given.

Specialized terms, slang, jargon is normal to have. And when for you 'leading' means a broader 'using lead', for me it’s a term that now means only 'controlling space between lines of text' (OK, maybe also 'assembling stained glass windows', but you can feel the context is extremely unmatching). Nothing else now is called 'leading', and the word is not worse than anything else, on the contrary, it’s extremely specific. Not self-explanatory — but narrow.
You say 'execute' is better than 'expand'? Wait, doesn’t it mean 'kill' or something? ...and why my pages are not 'stylish' when 'styles' are used?
By the way — you don’t put spaces around em dashes, why? Because of the tradition.
Why 'em dash', and not the 'long bar' or 'mega-hyphen'? Tradition.
Why 'space'? 'Space bar' is a button, why doesn't it control this particular 'space'? What, it’s some kind of different space? The one that is cosmos, no? Maybe be should call it 'horizontal quantized space bar' instead?
Wait, why 'horizontal'? There is no horizon in this media.
'Space after' — does it mean 'after the word next to it' (why 'next'?) or 'below'? Why not say 'space below' then? Tradition.
Inches — why? Tradition.

You type these using a keyboard, which is highly probable to have shifted rows — why? Tradition, formerly caused by natural reasons, to house real mechanical levers below keys. Why these are not forgotten still, why do these keyboards still exist, why not phased out?
Because evolution is not quantized, things don’t evolve in sessions. New generations overlap existing ones, and never get taught solely by books (which one can’t read if they don’t learn the language of their outdated ancestors with weird terms).

You can’t command the language, it evolves naturally. Sure, it does not mean revisions should not happen, and history knows many examples of forced changes, that were later (much later!) adopted and now are standards. But most of the times it leads to this: https://xkcd.com/927/
Ideas are tenacious, as life is. See, bacteria and amoeba are still here :)

I know, all of this long rant is specifically provoking and far-fetched, but just I wanted to make the notion more clear, that’s it.
Terms are hard, default values are hard, culture is hard. Making changes is hard.
Teaching is hard. And a reply I usually give to those who ask me 'Why is it still called that in the 21st century' is 'Because there are not enough reasons to call it otherwise'. When I am lazy or tired, I respond with 'Because that's how it's historically' :)

Why XD uses other terms and is fine with that? I guess XD is just new (still) and thus has less bounds to use 'older words'. Or it can be the dumbification, which is a separate topic.

Anyway, thanks for raising this up, Leon.