Risk Management or Risk Avoidance?
OK, it's a vulnerability, but any lock is vulnerable and we always knew that. In the 'olden days' when we had keys attached to planks of Perspex to open hotel room doors, they were certainly just as vulnerable as today's electronic locks, but it didn't need anyone to demonstrate that and there was never a general outrage amongst hoteliers that their room locks were suddenly vulnerable, nor any demand that the manufacturers should upgrade them.
Psychologically, I may now feel less secure staying in a hotel room vulnerable to this type of e-attack (and that's maybe a problem in itself for hotels), but the fact is I don't think the real world risk impact is going to be such that multi-million $ expediture would be justified. And it's still the case that most intrusions or thefts from hotel rooms don't involve defeating a door lock.