decade out of date) RMAS was a far better filter than RCB was. The system worked and the dangerously inept were binned after backterming (unfortunately this wasn't the case for the fat, lazy or shit members of the Pl, but in their defence they wouldn't have/weren't given the leeway to get anyone killed through stupidity post commissioning (one would have failed PCD but the Commandant stepped in to save the day - after his course report he wasn't allowed
It's possible that a different policy was related to the fact that RMAS was explicitly instructed to prepare 2Lts to be directly deployed to Afghan during that period (e.g. they changed the Senior term physical tests to reflect the PDT physical standard for that reason).
From 2011-ish onwards the gap had been met and they could assume that 2Lts would go through a full PDT cycle before deploying or not at all, but in 2007 - 2009 regiments were regularly flying 2Lts out after commissioning with only the 1-week PDT, and before Brecon or Phase 2/3 courses. That will have focused minds on the quality line.