Ignore the Youtube clip. The poster has obviously some axe to grind with BA.
1. The aircraft was an A320, not A319 (G-EUYK)
2. The 8 aircraft waiting to go was actually a single Aer Lingus flight (no idea of type)
3. There were no go arounds and sod all in the immediate area
He cleverly edited out the most aggravating sod, the ground controller, who appeared to have a bad attitude right at the beginning.