Nivsy
Don't want to get into a fight over this, as I (at least partly) agree that primary and secondary power going down is not very impressive - accepting of course that we don't yet know the severity of the incident or whether it was even possible for the backup generators to have solved the problem.
But in BRS and Ezy defence I fly very regularly on BA from LHR and Ezy from BRS. Ezy / BRS have a by-far better track record re on-time performance on the routes I use. The difference is that Ezy's operation does not have the resilience of BA, so on the (very rare) occasion I have had delays on Ezy, they tend to be fairly lengthy since there are no spare planes sitting around to pick up the slack when something goes wrong. This is the first time I have personally experienced a delay caused by Bristol Airport itself.