I don’t think I can agree with that - plenty of Lower Decks episodes seemed reverse-engineered around whatever legacy actors they were able to book, and other legacy actors were just sort of…stuffed in there.

I would agree that they always crafted meaningful stories around that stuff, but that stuff is still pretty foundational - moreso than perhaps any show besides the third season of Picard, which I would enthusiastically hold up as an example of “fan service” (I don’t love the term, but whatever, it fits) done very poorly.