Simple really, I suspect they are having a bit of a springclean on AOCs with operators who have accumulated every type know to man on them without having seen one for a while or having access to them. How do you operate, safely, a type with which you have only a passing relationship. Especially operators with a CAR217 org, maintaining relevant C & T experience on a type you might fly only occasionally, get real.
And delegations and ATO's?, well there are the good uns who do it right and there are plain revenue earners, where every body passes and everything gets approved. We all know who they are.
So why don't we have a big clean out and when we're done, we can restore the site to its previous credibility and reference point for the public who are trying to find their way through the clouds of BS.