What are the replacement materials?
I presume that laminated/coated MDF isn't the same market segment as heavy, dense engineered stones. Perhaps they'll go solid epoxy with no silica filler? That would be more expensive but probably work. I suspect they'll still want cheap fillers however, so non-silica stones might be chosen (but surely most stone dusts are bad?).
EDIT: Oh dear https://www.abc.net.au/news/2023-12-05/study-finds-safety-concerns-in-engineered-stone-alternatives/103185450