The concern expressed here, and here and here, is much more valid than that about usage-based billing. It is not the possibility of having to pay for bandwidth that is problematic, but that of being charged differential rates depending on who owns the content.
For each level of connection service quality (ie combination of speed, latency, reliability etc) there should be one bandwidth rate that applies equally to regular TV and internet. But I suspect that allowing infrastructure owners to also own or control content will always give rise to an irresistable temptation to favour their own material and to give inaccurate or misleading reports about relative costs so it may be necessary to force an arms-length separation of functions in order for the goal to be achievable.