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").
Oh my.
I can't quite believe they are ordering up 20,000 chips, and counting on them to all work right, without having first received such an engineering sample, to verify that it works, and to have the opportunity to make any changes before producing them in large numbers.
If they are, well, best of luck gentlemen.