It's hard to argue with that...
I look at the SDCC Death Star set as something that had a lot of forewarning (since February) that it wasn't even likely to be around after the show... So I can't see a ton of anger over it. It's kind of like the 2005 Anakin/Vader figure from Toy Fair that had fancy packaging.
Some people were mad about that not being widely available, but at the end of the day it was just packaging, which I kind of look at this SDCC2011 set as just that... those kind of exclusives are ok, to me. It sort of minimizes the damage, at least in theory, since it pretty much just ammounts to packaging being exclusive.
I can't say the same on the IJ figures... Something new, something nobody has and nobody had access to... that kind of stuff irks me more, but that's just me. To me, that kind of stuff should be made widely available, or at least more widely available than it was anyway, after the show. I get the inflated price on it too, and can deal with that, but limiting something new always hurts. Be it Sgt. Slaughter, Zarana, or IJ figures, or a random SW figure they decide to make exclusive.
Imagine the outrage had the McQuarrie figure set from 2007 been like this.

I also take into consideration the source though...
In this case, Hasbro, who mass produce toys. I find the extreme limiting of exclusives then, all the more annoying.
I'm more accepting of it from Sideshow though, or Gentle Giant... I can see their stuff being a lot more difficult to get because they're catering to a wholely separate crowd with what they make. It's more costly in general, shorter runs, etc.
If it's new, I think Hasbro has a little more obligation to get a more satisfying ammount out to public... If it's a packaging variation (ultimately), it's not as big a deal and impacts a smaller segment I'd assume, so it just makes a little more sense to me to go that route. But that's just me... It probably varies by each person I'm sure. I hate looking at collecting as a "chore" though.
Stuff like that seemed to kill the Playmates hold on Star Trek, and I just would hate to see that creep into a mass toy line like Star Wars now too.