Owners can set their own rules, but it sounds like this one won't be in business long, @רומן0 , since his reviews are bad.
I don't have a cleaning fee, and I ask my guests to leave the space as they found it, but they cannot possibly clean and prep to a standard that would be acceptable to the next guest. I, of course, have to clean after/before every guest.
Why do you want to stay at a place that has such terrible reviews? Is it very, very cheap? If that is the reason, and you are willing to put up with the medical risk of dried blood, etc., then I suppose it is fine, but I would be booking somewhere else if I were you.