They may be fired if they don't follow the protocols. The remaining ones are subject to restrictions imposed by insurance companies. Still further, if they fail to follow a protocol and get sued then they may have no recourse.

… you just reminded me of all the crazy 90’s and 00’s ridiculous medical litigation that was all over the news.

Fear porn. I remember thinking even at the time that there was some reason that they kept pushing those stories, but I had no idea what it was.

To create the LEGAL defense walls to keep doctors locked into their system.