Blood is a tank spec. Unholy requires a pet and does very little physical damage. It might as well just stand in the back with the physical weaklings and cast pretty spells. Neither are an acceptable substitute for either of the 2h DPS specs this class has lost, and you know it.
And telling people to "reroll" whenever they point out about something they like being adversely affected isn't helpful.
It is widely accepted that 2h frost did inferior damage for the majority of its existence. People are mourning its loss and hoping for its return based on factors OTHER than raw damage output. A lot of the aesthetic factors and coolness of DK's has been neutered since WRATH. Good for you if the things you like have remained, Blizzard seems to feel similarly. But more and more of the factors that drew some of us to DKs in the first place have been gutted or flat out removed, and one can only make ones feelings known to Blizzard (and yes I realize doing that here is pointless) or move on. Don't interject your own biases, or be an asshole, to those that choose to do the former.