Never felt myself lacking for fonts in Docs, myself. Quite the opposite, Google Fonts has way more than I'd ever have preinstalled and is now my primary avenue for typeface discovery.
Are you building a slide deck on your systems architecture? Probably doesn't matter.
Are you building a marketing deck on your new corporate identity? Probably matters a lot.
Either way, the tool I'm using shouldn't be the one deciding what matters and what doesn't. Just let me use my font as I please!
If I follow your train of thought to its logical conclusion, nothing matters. Which is correct, but sort of pointless to state. On top of this nothingness, we typically stack personal preferences.
As others have said, your point comes across as "let's remove design who cares" because design and human computer interaction roles stopped where your understanding ends. Everything looks the same to you after all (it doesn't, you just haven't noticed it affecting your decision making).
Such companies should be mocked and shamed, not held up as examples to follow.