Force majure is a long-standing limitation to contracts I believe.
When you take out a business license, you are agreeing to governmental meddling in your business.
One large shopping center operator was said to have gotten only 51% of rents due for March.
I thought force majeure had to be written into contracts as a specific clause, such as insurance. I haven’t seen it in any lease I’ve ever signed, at least not running to the benefit of the renter.
Good question, though.