Of course, that's one way to look at it.
There's also the fact the MOL may be getting an even stronger competitor (Aer Lingus has fought off one of the most ruthless LCC's over the past few years, I doubt this will be of concern tbh) who will gain alot of connecting pax.
Also its unlikely that IAG will have to drop any Heathrow slots as EI and BA will be separate entities, unlike the BMI slots.
Aer Lingus lost how much in last 10 years ?
Aer Lingus and BA are owned by same group, they connected and claiming they are not has no chance of being believed.
BA cannot compete with Low Cost Airlines never could, never will.