It's nice at least that they leave 20m (and presumably all other ham bands) alone. I would scan everything up to 50 MHz just to see who they are trying to avoid interfering with.
The previous owners of the house I'm in now put coax for cable in every single room and I'm thinking of getting a couple of MoCA devices and see if I can run gigabit over it without it generating RFI. I don't really need it, but it would be nice to run the backhaul over it for the meshed AP.