From what I understand The airlines and integrated schools have set up a very efficient relationship as regards tax relief on training cost's.
It probably helps to explain why they are hiring low hours graduates in favour of higher time modular students. If they didn't then they wouldn't be eligible for such perks and would loose credibility (i.e. why have you allowed young Bloggs to spend £59K after committing to your promise and you haven't hired him / her?)
Laws of supply and demand, lean times integrated course takeup is slower and so modular students are needed, good times course takeup is 100% and modular not required.