Death-knights are supposed to be masters of Necromancy--masters of death magic. I was actually very surprised and very disappointed with their introduction in Wrath that they didn't have a normal resurrection ability. But now, giving them a combat-resurrection spell does seem the most appropriate. After all, they are a melee-caster hybrid, so it does fit even better with the design of the class (by that notion, Paladins should have one, and frankly I'm surprised they don't).

In addition, I would like to point out that this gives Death Knights a bit more group utility than they had before, which couldn't have come at a better time, seeing as no-consequence-stacking of ranged dps has certainly been a problem for this expansion. Coupled with warriors now having their Last-Stand shout, it looks like things are finally looking up for melee dps!
Now if only we could get Warriors and DKs some CC for dungeons...

" 'Death Knights don't heal' "

This is hardly an argument against (Nay, its an argument FOR) a DK B-Res. Why does a class need to heal in order to resurrect? DKs are known for resurrecting people (though usually as soulless slaves) so there's no reason class-lore wise that they wouldn't be able to B-Res. The reasoning for giving a battle resurrection to a Tank/Dps class? Look at my comment on the last page.

And thankfully this isn't an ability that can be misused easily like Time Warp is (And even the fiasco that came from that subsided fairly quickly). So any "ZOMG DKS R BADS THEY ONLY USE IT RONG!!!!1!!ONE!" comments that may come should just be waved off.

TL;DR- Stop whining about DK B-Res.

I fully agree with the original poster. First off, I have nothing against a class outside of the healing classes having a B-rez, Warlocks have had one fore years and it makes sense. DK's having one just doesn't work lore wise for me at all. They are masters of DEATH magic, not life magic, resurrection is something that shouldn't be able to be done by those that are the exact opposite of the light or nature. The way the spell existed before was actually pretty cool, they should have expanded on that, made it a temporary battle rez where healing just doesn't work as well on the target or something. I just don't like DK's getting something like this, it just makes them seem more...cheap to me, but I have never been one to like the idea of "specialty"/"hero" classes anyway, they tend to make the other classes seem dull.