Welcome back, Guest_Poster.
I wasn’t using RPkm to measure customer satisfaction.
As discussed previously, Ryanair is at a different phase of its cycle, being a high growth “challenger” airline, whereas BA is an established carrier.
And BA is focussed on higher margin, low volume premium customers, which makes even its more modest increase more relevant. Ryanair, like most LCCs chases the high volume, low margin market.