I think if we change tagging practices it should make the overall situation better. I’m not seeing that here. Moving to chalet just moves the problem from one place to another. The issue is that it’s hard to put things nearly into different categories. Any tagging change should consider the following:
What type of structure/building is it?
Can anyone book to stay there or is it privately owned for own use (+ family + friends)?
Is it part of a larger site or standalone?
If part of larger site can you bring motorhomes / pitch tents there too?
In the meantime I think tourism=caravan_site + static_caravans=yes + caravans=no is the best option at the moment. If you asked a local to describe the site this is probably what they would say (“it’s a caravan site for static caravans and not towed caravans or campervans”)