Using a common carrier for business is different from purchasing reserved quotas from them and then reselling the access. I can see how it isn’t clear when taken to the extreme, but there’s got to be some balance otherwise a carrier could just resell 100% of the bandwidth to some subsidiary to launder it. I don’t know the answer but this at least seems like a pretty big loophole if it were allowed.

I think you can pretty clearly mentally separate a derivative service originating from a leased common line and Hallmark accepting internet orders.