Re the exit seats.
I understand that the refit has now been completed for the euro Airbus fleet. So the only odd balls are the ex BMI hulls which are mainly LGW based. The seat maps on MMB differentiate quite clearly which is which.
A substitution will always be possible.
I also understand that all airlines cover themselves using similar wording.
I’ve been caught out myself.
Life is far from perfect, I just build a bridge in my mind……..then I get over it.
Works for me……