if you pay your line rental to BT still then the above is not relevant
I'm sure what you posted is not accurate. It does not matter if you are "full" or "partial LLU" anymore, even BT Retail for voice is seen as "LLU" by Openreach, now they are separate.
However if you paid voice to BT Retail and data to Sky (no longer offered) then Sky would STILL need a GEA cablelink between the Openreach FTTC termination, and the Sky rack. This is not affected by whom you pay voice to.
20 years of broadband connectivity since 1999 trial - Live BQM