As a customer, I'd want to see those additional screening questions in advance.
So would I. If I traveled far, with flights and hotel bookings, to dive a foreign destination, and had a medical form with all 'No' checks or a health care provider clearance to dive form, and somebody still denied me services (assuming I didn't show up 500 lbs, red-faced and huffing from walking across the room, etc...), I'd be mad. That person probably wouldn't reimburse me the cost of my trip. Word gets around.
Dive tourists already face a number of risks that can derail their highly anticipated, highly expensive trip that may've been scheduled during hard to secure vacation time - flight interruptions, COVID-19, ear infection, bad sprain or broken bone pre-trip, middle ear infection or bad accident on trip, death in the family, etc...
If I have a choice of 2 dives op.s; I know one will accept my paperwork as is, no further questions asked, and the other is going to interview me in person (I'm guessing when I get there? Or will this be by Zoom interview?) to decide whether to let me dive, I'm going for the first shop.
There are people with sufficient 'fame' to get away with practicing the latter way, I'd imagine - prestigious instructors, etc..., so it might be a workable business model for them.