Additionally, I'd worry more about actually getting BMI regional to offer you a position. I've often flown with people in the recent past who talk about the other options they have at the moment, when actually none of them have even applied for other positions. There's definitely a misconception our there, that because their friends are leaving, it'll be easy for them to do the same.
Just be mindful that until you have an offer, you've no decision to make. It might be slightly better to ask this type of question after you've passed.