This was made on an almost BiS blood death knight (sans penumbra) on 25 hc DBS prior to moltdown and death rune + 2.5 second grace period fixes (exact date being December 22, 2014). The death knight right below was an almost BiS unholy (also just missing 1 piece of jewelry if i remember right) and the 3rd dk in the raid was an under-geared frost.
I'd imagine with same gear it is now very plausible to remain competitive as a blood dps in end-game raiding.