No, that just means that they don't have a prototype of this board running, it does not mean they are "fakes"
A fake is something intended to fool. An engineering sample is a more likely possibility.
Engineering samples are by definition an actual, mostly-working version of the chip, possibly with various issues and really poor yields, but functional enough to test with. BFL have said they don't have any chips like that yet, so these pretty much have to be fakes (though I believe the more polite term is "mock-up").