I think what Servo's getting at is the prospect of an ex-Ejet F/O getting his/her first command on a widebody, as opposed to someone more senior, or who came from a more "senior" A/C type (but then again, I may be wrong).
On the second note, let's not forget that guys were joining
VB & getting their first jet command on a 737 after having flown nothing bigger than a Chieftain, so why should an A330 be any different? Just a thought...