There is literally nothing in possibility of bankruptcy that conflicts with a perpetual license - honoring the license is neither some goodwill that a company m

There is literally nothing in possibility of bankruptcy that conflicts with a perpetual license - honoring the license is neither some goodwill that a company may voluntarily abandon if it's in financial hardship, nor something that bankruptcy courts will void. The relevant consumer rights laws should simply assert that if you sell a license, then it's irrevocable, no matter what your fine print says. And also there's nothing inherently wrong with temporarily licensed things as long as you make it clear up front. If you're offering a three-year license, that's just as valid as a monthly subscription, but you shouldn't be permitted to sell a license for the period of "as long as I wish".