What would be the point of blaming LLMs? What would that accomplish? What does it even mean to blame LLMs?

LLMs are not submitting these papers on their own, people are. As far as I'm concerned, whatever blame exists rests on those people and the system that rewards them.

Perhaps what is meant is "blame the development of LLMs." We don't "blame guns" for shootings, but certainly with reduced access to guns, shootings would be fewer.