Security forces have already been hacking hotel door locks for years. For example, Mossad agents were caught on camera in 2010 cracking the lock on Mahmoud Al-Mabhouh's room before assassinating him: https://en.wikipedia.org/wiki/Assassination_of_Mahmoud_Al-Ma...

I remember reading a related article (sorry, can't find the source now) about the assassination that claimed the agents had tools to break into a large variety of electronic lock companies, so it's unlikely that F-Secure's hack is a one-off discovery.