If you own your own place and are lax in your upkeep, fire prevention, fire detection, and safety measures, it's likely you who will pay the price. If you're renting your place out as an illegal hotel, you're affecting unsuspecting guests.
Was our house acceptably safe without those? Probably.
Is it going to be better now? Certainly. It's a bit of work installing 7+ devices, but I understand that we've reduced a lot of risk.
Same thing with the fire extinguishers and other safety equipment we'll have to pick up.
Rental units here have somewhat similar requirements, and I think short-term rentals should have similar safety features.
Good standards are good, double standards are not.
Buying a house? Make sure stuff is up to code, get an inspector, but it's on you.
Housing kids for the state? There's a public interest in making sure they're safe.
Renting out a room or building? Safe thing (and there are already regulations here that are stricter than those applying to private he owners)
Renting out a room or house short term? Again, same thing. This should at least be the same as a long term rental.
EDIT: anyway, my original point was that there is precedence for safety regs even if you don't have long hallways or tall buildings.