If I, as a landlord, having registered my tenant when he first moved in, go hiking in Nepal, go on a cruise or any other options which means I have no internet connection, supposed to submit a TM 30 if my tenant goes on an overseas trip. Further, the tenant has no obligation to keep me informed as to his movements. To include such a requirement in a rental contract would be a gross invasion of privacy.
The tenant is, of course, a possessor of my property and is responsible to submit a TM 30 if required. Some people know this, but many do not; including it seems some immigration officers.