I should add that I read somewhere else that a lot of these plans are “platinum” and are therefore unlikely to be “young healthies”, who would be wasting money on such comprehensive coverage; these are almost certainly mostly older and/or sicker enrollees who are about to sock the system with extensive and costly claims for treatment of those “pre-existing conditions” they couldn’t get treated before.
Adam Smith's invisible hand working like clockwork....people are smart...gobmints are dumb.