Re: Good stuff but a sticking plaster fix ...
I can fully accept that rural businesses are likely to need better broadband than this proposal is likely to bring about
I don't think even that's necessarily true. There aren't many rural businesses that need video, but they do need e-mail that works even when the local cabinet is standing in water - most of them could manage with "basic but reliable" broadband, at least for the near future.
I too wonder about the need for "eye - wateringly fast broadband" - the main use case still seems to be the passive consumption of entertainment which isn't exactly economically compelling even if it would permit the retirement of broadcast transmitters. FTTP does have other potential benefits in terms of maintenance, predictability of service and longevity but that will come at a cost.