You are right about the salary starting at $101,075 for a Level 1 FO. But I don't know were you are getting that they are required to be hired as a flexi line pilot?
I think you will find that they will be full time pilots.
I have no information on the contract that will be offered which is why I said they
may be hired under flexi-line. This is based on the fact that most DEPs have been recruited on FL over the past few years as a matter of course, if there has been a recent change of mindset/policy in flight ops management then great.