My exchange (ESDAL) is a Handover exchange.
It has very little FTTP at present. It's almost exclusively new builds and retro new build work.
This means it isn't worth it for some backhaul providers to buy a 10Gb GEA cablelink yet.
This is what I thought, the market is likely to be BTw heavy until areas gain critical mass. I presume what Vodafone are doing with Birmingham/Bristol/Liverpool is using their own network to the handover point, which is the reason for the limited footprint.
Thanks for clearing up how BTw works, I wasn't sure.