If people apply to one company and are later allowed to transfer into another one, it's not their fault. That's the way it's stipulated in YOUR COMPANY'S EBA. If you have a problem with that, speak to your union.
PS - I'm a hard working regional pilot.
PPS - How much was your endorsement?
Think you'll find they did recruit internally first.
(Not trying to start a slinging match here, let's all just be reasonable).