But I was kind of hoping for some indication that developments of that kind actually occurred; it would be the least surprising thing in the world to see a selection effect in the study of Linear B inscriptions whereby students who couldn't reconcile themselves with the idea that decipherment will happily assign a meaning to any text, even where the actual meaning of the text is known to be different, left the field, while students who didn't mind that stayed in. Over time a strong consensus in favor of the position "no, I didn't waste the last 30 years of my life" is exactly what you'd expect to see.

There are no professions in which the professional consensus is "actually, none of this works". But there are many in which that is the truth.