This seems reasonable.
> Particularly when you start stuffing things like vaccine mandates -- something unprecedented for OSHA -- into the bucket of workplace safety
I agree it is an imperfect application and pushes past existing boundaries.
> You would need to make a case that the measure ties reasonably to interstate commerce or some other enumerated power
If limited to the scope of this EO, this is hopefully part of what the courts are going to consider.
> Personally, I think trying to turn OSHA into a public health authority is a bit of a stretch, as historically this has been the job of states.
On the former, I agree on principle. On the latter I am disinclined to appreciate that arrangement while it is routine for state officials to exercise corruption and party favoritism - because it is typically left to harmful state officials to perform their own oversight.