Doesn't really matter that much what they're called as long as they're useful, and LLMs (particularly when harnessed) are already ridiculously useful. But it also begs the question: are stochastic parrots useful?

Yes, they are. Likely due to a deep relationship between math and physics, statistical modelling of complex natural phenomena has repeatedly been shown to be the most effective approach. This is true of LLMs, but also of many stochastic (and other) systems.