Since Dave has earned people's respect they listen and ended up taking that text too literal imo.
Because for me, it is literally as bad as that. I literally explored every possible avenue for why CrossfireX was behaving poorly, visually, to me, when benches said otherwise, and even FPS. Drives, PSUs, boards, memory, CPUs, SDDs/HDDs, blah blah blah, ad naseum. I'm left-handed. To some, that's explain why I'm more sensitive to this issue than most. I also tend to run high-end configs, multi-monitor and such, that few users do.
For me, that second, third and fourth card I have, they are basically useless. I expect, that when this card launches, that will change. Actually, I expect the first WHQL after the card lunches to fix it for all cards, honestly.