I think you might be misinterpreting.
A year of single pilot IFR in light twins would be great before jumping in the RHS seat of a jet (a few years would be better), but this guy did a year of single pilot IFR before jumping into the LHS. Big difference.
This is exacty what the senate inquiry is about isn't it?
Tell me how many stick shaker events haven been investigated on approach to the same airport (or any airport) by QF jets?