What is wrong in that quoted sentence? Do you mean "articulacy" should instead be "articulateness"? "Articulacy" is also a word, and correct in this context.
I have terrible news for you. Linguistics is descriptive, not prescriptive. We will torment you with word game playing until such time as you loosen up.
LLMs ain't gonna do sheeeeeeeit if this is still where we are at...