It was so inconsistently applied that I'd pretty much given up anyway (many times I tried to take the green choice but didn't see the points afterwards. I won't miss it. Housekeeping on demand as a long term concept is interesting, kinda removes a differentiation from airbnb, I will be demanding it, but I am sure it would be popular amongst hotels looking to cut costs. On my most recent stays the hotels were reducing housekeeping to every other day blaming COVID (in Greece), and right now I can understand that. I would however rather that they made housekeeping wear PPE (ala Qatar Airways staff) and paid them a bit better.
I consider anything at the moment fairly temporary and won't get too "outraged" until we are back to normal (whatever that normal is), in 6 to 12 months.