Waiting on stand for 10-15 minutes is not uncommon, especially as several flights are scheduled to depart at the same times.
Also regularly wait on stand for the aircraft at 7 miles to land and taxi past. Seems a maximum of two aircraft only to taxi after the pushback incident.
Also the amount of fuel wasted holding to depart and wasted by Solents extended vectoring and the limited airspace available, must run a hefty bill for Flybe.
Compared to larger airports like Lgw and man, the movement of air traffic seems very slow, inefficient and cautious.