The majors do pay attention:
"The DIP financing is part of a settlement Delta and Republic reached in the former's lawsuit filed in 2015. The suit alleged more than $1 million in economic damage from the regional carrier’s inability to meet its flying commitments."
https://www.flightglobal.com/news/ar...ion-fi-423568/
High pilot turnover at the regional level is quite normal especially now when the big carriers are hiring like mad.