Why would connecting domestic pax use a different airport at NHT to connect miles with BA long haul when KLM can do it under one roof at AMS? What question is NHT an answer to? P2P was semi moved out when LCY was built up, how is a ludicriously complicated connection to a different airport a good idea in this market? *Hint : It's not, this is why it's not a serious option.
As for WW thinking he can have 100% Heathrow, that's not likely now is it, and WW is nothing if not a realist. Back to reality please chaps?