That's not actually true.

Many times in corporate environments you don't have permissions to do that, and let me tell you it's a pain when you 5 layer down a RDP rabbit hole to figure out which locale you're using

One problem is that a lot of translations in Microsoft's documentation are subtly wrong, but you don't immediately notice because the grammar is correct. And this problem already existed before machine translation was a thing (I guess MS just hired translators who were not familar with the documentation's product or even 'computer-lingo' in general).

Haha, hardly. That's far from the case.