I have absolutely no idea if this story is correct or not - it certainly seems to have an air of truth about it. What I can say is that this is the first I have heard about the alleged incident and there has been absolutely nothing from the company on the subject. If it is true I would hope that that a very full and thorough description of what happened will be forthcoming very soon.
Reading some of the posts here, you could be forgiven for thinking that electrical failures on Airbuses are regular events. All I can tell you is that I have flown them for years and have never had a single electrical failure of any kind (except in the simulator!).