Indeed, on most occasions, boarding only started a few minutes prior to planned off blocks time, and whilst arrival was usually back on schedule
So, if they "usually" arrive on time, what exactly is your problem? My experience with other carriers is also that relatively short delays in boarding (i.e. +/- 15 mins) remain un-announced. I'm not pro FLYBE but I just don't understand your argument, sorry.
By the way, as a crew member, you should be aware that the lack of information is often down to the handling agents and not directly with the airline.