Is it reasonable that the property did not inform the owner to change the access control?

It's unreasonable, but don't get excited. To put it bluntly, it is not good to be stiff. You can react with multiple owners. You should inform the property first, and then even if you want the access key again, it's ok, but you didn't tell the owner. Hehe, the people who contract the property either don't have much money or don't know how to handle things. This is also for themselves.

ask for trouble