My housekeeper charges me $75 to clean a 2-bedroom condo. It generally takes her about 2-3 hours to do so, and she depends on cleaning 2-3 units a day to sustain her livelihood.
To implement the new mandatory cleaning protocol, she'll have to dedicate an entire day to cleaning a single unit. That means my cost will be $200, which I'll of course have to pass along to my guests. That also makes my unit very non-competitive with other units (unless all other hosts in my area do the same, which I'd be shocked to see), not to mention non-competitive with hotels in my area. Not to mention that guests will be unhappy that the cleaning fee exceeds the nightly rental cost by a factor of two.
I don't have any issues with providing a clean environment for my guests, and indeed my housekeepers are already doing the vast majority of the things on the checklist, but some of the requirements strike me as arbitrary and not backed by evidence. Where is the data, Airbnb, that shows that guests have caught COVID from not performing each and every one of these checklist items? Give me one example of a guest catching COVID from curtains that haven't been laundered and maybe I'll back off of my stance, but seriously...stuff like that is utter overkill. I'm all for wearing masks in public and when sharing rooms with others, and it's true that aerosolized particles can carry the virus, but I've seen no evidence that anyone has entered a hotel room or vacation rental and caught covid simply by breathing in air that's been exchanged by ventilation from open windows or exhaust fans.
If you're going to make all this mandatory, you'd better be prepared to force every host on your platform to raise their cleaning fees to accommodate these requirements. Failure to do so and I'll be losing business to those hosts who don't actually implement every last bullet point on your list.