I can see why you would be frustrated by all this. I felt frustrated reading it. You are providing far more than a Landlord would to a tenant in the same circumstances.
Our Residents arrange their own internet provision, as they are each responsible for their own phone line- digital or otherwise. If any cables need attaching to the structure, it would require permission of the Trustees, who are responsible for the Listed building. There has been talk of possibly laying cables in the roof space, but nothing has come of it yet.