Hmmm.. the AAIB rarely delves a great deal into the crews backgrounds... esp. training records... saying that they are to be commended for their thoroughness.
Sadly, in this case, it demonstrates just what I have been saying for years, that dimwitted idiots with a lot of dosh can make it to the RHS of a 737/757/A320 with inadequate training and slips (overlooks?) through the cracks.
Met a few myself.
Sooner the SSTR and Pay for Line time is eliminated the better.