So the world expects these companies to be absolutely perfect and never have anything go wrong.
Bear in mind that the power failure at LGW could easily have been outside the airports control (it could have been UK Power Networks of National Grid equipment)
No one died, no one was injured so safety was ensured by what back-up power was available.
Tell me how many of you have a back-up generator, heating and cooking at home in case of problems?
How many have a back-up car in case of breakdown.
How many know what is involved with safely cleaning a flooded sub-station, possibly replacing equipment so it can be switched back into use?
Do you think it is a couple of hours or maybe a day or two.
Despite what folk think it is not an "instant" world!