Ang,
I doubt any operator will expose themselves in this manner, particularly on this forum.
If they did, it would be the usual stuff.
Not enough profit margin anymore
We invest a lot of money in inexperienced pilots and then they **** off when they're getting useful.
If you don't like it go somewhere else.
Inexperienced pilots create extra maintenance through bad handling.
You're learning how to operate commercially.
Every operator has a different favorite "reason"