I would say that complete electrical failure = major structural failure. To get there you would have some (chain of) events that will imply that the aircraft is otherwise significantly crippled. I don't think there is any other scenario possible, however improbable.
And, while thousands of posts on another thread join a very small number of dots to draw any number of wild and mystical creatures, I suspect that is exactly what we will find. The only question will be the cause of the major failure.