Three words.
Trade description act.

To sell club Europe to Ireland and provide a different service to club Europe to anywhere else breaches that.

Is someone going to bother bringing BA to the small claims court over that? Probably not so we'll never see it tested.
If they've any sense,they'll spend less money flying Ei on that route untill there's a restoration of equivalence.

Why pay the extra?

I can buy a separate Ei ticket,bob,pay for row one ,enjoy the Ei lounge food,and come home with a 42' led tv and still have change for example.

This needs a rethink,it wasn't put together by regular fliers,or people who have a clue about or enjoy flying,that's for sure!