They probably won't ever figure that out as it happens to healthcare workers disproportionately to other fields.
In point of fact, most healthcare are rescinding the mandates; they lost so many people that they recalled many of them and waived the jab requirements.
While this is not a bad thing, the ruling was incredibly weak. All it said was that OSHA didn't have the ability to impose these requirements without "Congressional authorization". That leaves the door open for Congress to authorize it.
It was a way for them to wiggle out of a real ruling by using a technicality. What we really need is a declaration that jab mandates in general are unconstitutional.
Nothing happens without the permission of TPTB. They're probably getting ready for the next phase of the Great Rest, either a worse pathogen or else a cyber-plandemic.