While this may be true in general of "audiophile" cable brands, Blue Jeans is not the kind of company that puts out $500 oxygen-free RCA cables pre-digested by civets (or whatever). It's pretty clear from poking around their site that they do, in fact, understand HDMI pretty well. (The Civet Poop Cable Company is not likely to use language like "if the cheapest cable will do everything you ask of it, there's no picture improvement to be had in going to the best cable (this is, after all, a digital signal)" on their web site.)
I don't know which of their cables the previous poster had trouble with, but I'm pretty sure he could have returned it for a refund.
(Disclosure: I have no relationship with BJC other than being quite happy with the speaker cables I've bought from them. Which I'm sure the Monoprice fans would tell me I overpaid for anyway, but, well.)