Domain-specific solutions require you to understand the problem, which requires domain expertise and/or user research.
But that requires decision-makers to admit ignorance.
Bolting an LLM onto every product doesn't require understanding the problem AND makes investors happy you're "innovating."
It's maddening hearing folks talk about LLM use-cases within their tools that would seem to be so much more effectively and reliably addressed by simple domain-specific implementations of solutions.