I think you've misunderstood something. This is not about rejecting LLM-written articles. It is about rejecting the articles of people who used LLMs for their reviews.
Those second-level reviewers, checking whether the first-level authors used LLMs in their reviews, also used LLMs to do their screening, and the latter missed it in many cases.
My original point (loosely based on the subject, not TFA) is that it's LLMs all the way down, way more than it's "measured" to be.
So your quip is just nonsensical.