From a purely electrical standpoint there is really not that much to worry about with comm cabling but you still could be dealing with penetrations and flame/smoke issues depending on what cable they use and how they run it.
I agree it would be a nightmare trying to get permits and inspections every time the cable guy comes to your house.
That still doesn't do anything for the handyman work.
We have low voltage licensing here in Florida and I bet that is the least enforced law in the trades. Most guys who do this don't even know there is a licensing requirement and that is particularly true of telecom "contractors".
