A lot of the Phase 2 training had not substantially changed to align with the 'new' IOT. I know that my Branch hadn't stepped up.
Aircrew tend not to care about most of that stuff that gets in the way of their flying. JOCC isn't known as 'Aircrew Catchup' for nothing. I was embarrassed at how little the Aircrew on my course had developed and how narrow their view was, particularly on issues such as personnel and leadership. Given that they would go on to be Station Commanders and ultimately lead the RAF was more than a little concerning at times. I know a good Staish will let his Execs do the real work, but it matters.
It doesn't really matter whether you think that Aircrew are the centre of the RAF universe. If the common entry training (which is far more useful to every other Branch) is changed to suit Aircrew, then that's detrimental to every other Branch. 'Shoving it to Phase 2' isn't a good answer.