Ixixly that's based on like for like. If you replaced JQ guys with QF guys on QF conditions. IE 737 and 330 rates. This came from a senior manager down the line.
All airlines receive loyalty regardless of the company or the conditions. Would a JQ captain move to Qantas as an SO? Would a DJ captain do the same? Would a JQ captain after ten years service move to DJ?
Seniority dictates where you stay. Barely any guys leave any Australian airline unless it goes broke or they retire. The odd few head to the sandpit, but you could count them on one hand in the last five years.