Isn't that simply because BA took a decision in 2011 to stop direct entry pilot recruitment and make a 'mutually beneficial' financial deal with an integrated training organisation?
777X? The notion that modular pilots have less ability because they took longer to get the licence is utterly nonsensical! Conversely, some might say that integrated pilots are the lesser because they emerge with less experience having crammed all the learning into fewer flights.
The reality is that there are fewer opportunities for modular students because airlines have reduced costs by simplifying recruitment avenues. This has the additional benefit that they get a financial inducement to stick to certain training organisations.
At a higher level, airlines such as NAS and TOM have realised that you can recruit fully trained pilots from the likes of FR just by offering normal remuneration.