Not at all.
We have people from all walks of life.
True that most new starters are young and just out of flying school. This is because to make life easier Flybe will approach the school and ask them to submit cv's from suitably qualified people.
It seems that Flybe are currently doing the rounds at Cranfield and Oxford. I guess this is to save time.
Things change very fast in the world of aviation. I remember just before finishing my full time training, I attended a "co-pilot" seminar in a London hotel. A group of us pounced on the rep from Flybe, only to be told that they required a minimum of 250hrs. Two months later I'm being interviewed in Exeter with the bog standard 195hrs in my log book.
Give Flybe a polite call, and if you are available at short notice for an interview, tell them that. You have nothing to lose
Good luck guys