alt Hacker NewsTo get closer to an answer to this you should still talk to the people doing the actual work?
I know that many scholars have an uncomfortable relationship to the PR work their research institutions are doing, but they themselves don’t strike me as unapproachable or closed to nuanced discussion. Seems weird to ignore that perspective and wildly speculate from the outside.
Who is inside and who is outside depends on your (subjective) spatial interpretation of the situation.
It could just as well be said that a bunch of scholars disconnected from the culture, history, and technique of fine arts (except as objects of scholarly interest) are wildly speculating from the outside about the nature of the objects, and people interested in these things are starting to ask "Why are these silly things being said about the topic I'm interested in? Are the people behind this pranksters?"
Anyways, if there is a misunderstanding here, which I don't doubt is the case for at least some of the people involved, why can't the discourse be had in public about it? The question has been asked as you suggest...publicly. Polychromic revivalists are free to respond in public, and we can all benefit from hearing the more nuanced perspectives get expressed.