Any obligation to "do something" would fall on the local council, not BW.
In essence, provided that there is adequate 14 day mooring in an area, and adequate provision of sanitary stations, there will be nothing to do.
Where there is a shortage of sanitary stations, or 14 day moorings, the council may be obliged to provide facilities (and will have to pay BW as landowner for doing so).
In areas where there are lots of "fake CCers", who are out there bridge hopping because they can't get a residential mooring, councils may be faced with a choice between paying out money to provide for these "travellers", or granting residential PP and collecting CT on the resulting moorings.
As I see it, all the likely outcomes are good for the canals.