Google searches being keyword based, rather than simulated conversations?

The same reason you wouldn't put in an entire actual question/sentence, unless you either don't know how to use Google, are pissed off, or have an actual reason to suspect that it would yield proper hits (e.g. looking up an excerpt).

Genuine question: do you write Google search queries in natural language?

Google isn’t conversational.

llms seem more human like so if you were to treat them badly then you are more likely to condition yourself to treat other living creatures badly.