It does actually. The only difference is how long it took and arguably Dresden was in worse shape than Hiroshima or Nagasaki.
> I'm not trying to diminish the scale of destruction in Dresden
Well, forgive me.
> but there are many cities other than it that got destroyed in similar, "conventional" way
No, there aren't. That's exactly why Dresden stands out.
> I don't see why it should be treated in a special way.
You really should go and have a look at those before and after pictures then. They are nothing short of incredible.
Warsaw, Breslau or Tokyo (and Rotterdam, for that matter) do not compare even though the destruction there was widespread.