Yes, but......Andy had already beaten Berdych earlier in the year on hard. Also, Andy's serve was as much disrupted as B's. Still not convinced, I think you make you're own luck.
Even with net cords, you're playing so you skim the top of the net, lots of skill there.
if your opponents all drop out on the way to the final, that could be called "lucky," but that often seems to be countered by being less match sharp.