I believe it's more to do with the 1,000's of other pilots that are beyond "qualified" and knocking on the door over and over again....
Not sure that it has to do with 0-1500 hours.
I know at least 8 people that want to work for us... One of them has 737,767 CA time. And he's sub 30... Not one bite. (Keep, he will leave for DAL, UAL, AAL comments) this more has to do with the qualified applicants that's should be hired..