Though they do have the money to generate terrible TTS audio for many videos. And since google can't fathom a person knowing a foreign language, use those automatically without warning.

I've even seen videos that were in English, but mislabeled, so they got auto-dubbed back to English, replacing the real voices with a monotonous synthetic voice.

I appreciate the auto translated captions sometimes as they let you get the gist of what's going on, but auto dubbing is pretty much never desirable