Combining CFW with lakeshore lodge would be rather similar to the cabins at Wilderness Lodge and the TreeHouses at SSR. Combining with the larger resort creates more opportunities for 11mo guests to pick the type of accommodation that they want. It may be that the cabins were always intended to be part of LSL's larger
DVC play, and planning for LSL had obviously been going on well before and into the planning/building of the cabins. It could be that timing meant that the cabins came first, and they weren't ready to give the game away for LSL, so that's why the created the trust. It enabled them to start selling the cabins sooner, and once LSL is finished, they can be combined without having to go through a complex legal process that adding a new different property might endure.
The extra maintenance fees of the cabins will be ammortized with the room options at LSL. There appear to be steel A-Frames going up around LSL - I wouldn't be surprised if those where more Poly/Copper Creek style cabins.
Having a resort with a range of room options beyond the studio,1,2 3 beds would probably be good, both from a cash guest and DVC perspective.