Portability?
From an outsider's perspective I wonder how many cadets planned on being wed to JQ for all of their S/O years plus a couple? Very few foreign airlines recognise S/O time, and low time cadets would need at least a couple of thousand hours F/O time to establish bona fides elsewhere.
Of course, if staying at JQ is your goal, then rank is irrelevant compared to the paycheque. If it isn't the usual maths apply: plot out your expected experience levels against your age. If you hit thirty with less than at least a few thousand hours F/O plus light command time, you risk becoming aviation roadkill to potential employers.
I don't know what the answer is, since I am a relic of a bygone era, barely the same genus let alone the same generation. Good luck to all who apply.