Led,
You are pulling your pud too hard mate.
Having been a part of the TN/QF merger ,I'll let you in on a little secret,
TN guys got their commands on their aircraft way before any boogyman Qantas pilot of a similar seniority did,and so they should!
This much maligned Y seniority list you harp on about ,may not have been perfect , however I believe it probably was one of the smoothest meldings of seniority between two pilot groups, period.