It's important to keep in mind that this debate that a policy in effect for a dive resort means one of two things if you're diving:
- You're either at a statistically insignificant risk of covid transmission if you have to share air
- You may be dealing with a diver being asked to respond to an emergency in an equipment configuration that they are not familiar with
Hell, if we go back to the BSAC studies, they preach over and over about the risk of divers using unfamiliar equipment configurations and the risk that brings. The agencies that dictate a singular gear configuration do so for familiarity with equipment, so people aren't trying to figure out something they aren't used to.
Now, long term, that risk could be mitigated by forcing everyone into a standard gear configuration (not that that would ever happen or anyone would ever agree what that is), but if we live in the real world and accept that currently, different people dive differently, and that this is policy is for what is happening NOW, for this policy to make any sense, you would need to be convinced that risk due to covid infection in sharing air is greater than the risk of a diver responding in an unfamiliar gear configuration. Does ANYONE think that is true?