alt Hacker NewsWho 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.
How do you think public discourse spaces are created? By approaching and talking to people when you write about them! That doesn’t just magically happen …
I merely would have expected some humility when you characterize the work of other scholars from the outside without even talking to them. (Outside here is relative. Whenever you talk about scientific of scholarly work without talking to the people who do the work you are on the outside.)
If those scholars don’t want to talk to you, fair enough, probably no humility needed. If you don’t want to talk to them (which, fair enough, not everyone is cut out or wants to do journalistic work) you better be humble and maximally charitable, though.