I'm confused.
In any 'seniority based' airline that will all count against you.The kiddo who joined straight from flying school a year before you will be ahead of you for promotion. That will eventually make you grumpy and they won't want grumpy pilots in their airline, so they'll stick to employing the kiddos straight from the flying schools. These kiddos will be so heavily in debt that they can't afford to leave and repay the type-rating bond; and by the time their bond is finished they will be looking at how close they are to a command and that leaving will be throwing away their precious position on that seniority list. The airline will quite obviously prefer them rather than you. Those kids aren't 'bypassing the system', for seniority based airlines they are the system.
If this is the case, why did their requirements state:
"500 hours flight time or 100 flight sectors on an MPA"
and "Experience of flying with a commercial airline with an established SOP"
and "Hold a total flight time of 1000 hours with multi crew, multi engine experience."
Maybe that was just for the guys who don't have the MPL.