I meant they are going to withdraw it from service after 2020. However it was only a rumor from German media, I thought either www.airliners.de or www.aero.de - but if it is true, I can understand the decision.

748 makes no sense, even LH is gonna resell to Boeing. Either A388 or 779X depends on which route.

Of course it might not be the 'old fare' offered by BA. With or without baggage, the price - as you said - might goes up and down. depending on availability.  But to answer your question: "Absolutely retarded to charge for  [....] especially if they will not let premium FF off the hook...

Then you should take the normal fare where premium FF should buy. The price reduction is only offered for person who doesn't really need a checked-in baggage.

Premium FF doesn't have a problem to pay 8 £ extra.