It's a pejorative only because determinism is what makes computers useful in the first place. You get a consistent result, every single time, unlike if you have a human in the loop. Because LLMs are stochastic, they have removed the thing that makes computers useful to us, thus it's a pejorative.
1. Determinism is a very small subset of what makes computers useful. Non-determinism like stochasticity is literally everywhere, like random seeds.
2. LLMs are detemrinistic. They have a parameter to tune how stochastic they are.
It turns out that determinism isn't what makes computers useful in the first place.