[chromacity]

No. I've been using that construct long before LLMs and I don't think there's anything wrong with it. It allows you to succinctly state the position you're disagreeing with before putting forward another hypothesis. LLMs overuse it for needless emphasis, with the negative example usually reduced to a single word.

[jollyllama]

It's never been so prevalent as now, it's everywhere. I didn't mean any of this as a bad faith thing, it genuinely is changing how people think, speak, etc. Also, I don't consider hedging or defensive writing or negative definitions succinct (it's not a wall of text, granted) and in ordinary times it did indeed have its place.

Edit: I would add that you literally followed the formula in every respect except for a single word, and IMO LLMs are already changing to avoid the single-word formulation.