I hate to say it, but I don't include the revamped 1-60 as part of the Cataclysm content.
While it was certainly a Herculean effort to do that, it wasn't a part of the shipped game. The game changed the old world regardless if I had Cataclsym or not. What matters, to me, in an expansion is the content when you step into the new zone, the raids, the dungeons, the quests, etc. The old world wasn't a part of Mount Hyjal, Uldum, etc.
I'd have to say that's fair and doesn't help the perception for Cataclysm.
I am a sucker and went through all the old content. I love lore and the new stuff, honestly, was outstanding. Silverpine --> Hillsbrad are still standouts to me.
That being said, I know people who still haven't gone through any of that, even on their maxxed out characters, and so it doesn't even register as Cataclysm content. And to your point, you very well could argue it's not.
To Blizzard I'm sure it was, but taken independantly, it's not a part of the sale package.
I think it's kind of interesting, this it the first time Horde players actually do something legitimately evil. I still prefer the "both sides have legitimate quarrels with each other" cold war style from Vanilla and BC, but the more we move away from having a true antagonist, the more this works. Of course Thrall will step in and redeem the Horde or something, but until then...
And now on to something that makes me look bad.
Is it wrong that I am rooting for Garrosh and want to smash the Alliance?