It's not like I've been happily grabbing new iterations of Arceus until this point, when I'm suddenly mad about another one. I've been getting them because they're there (just like I'm going to get this one).
This event is worse because it didn't have to be Arceus. When they make an Arceus movie and release a movie Arceus, that's all that could be. If there's a poll and a chance for something new, and it's still Arceus, that really annoys me.
But I don't play competitively, so it isn't ruining my day or anything. A change would have been nice is all.
Don't get me wrong, I also would have preferred an unreleased hidden ability Pokemon (Regenerator Ho-oh or Multiscale Lugia would have been my first picks, since they're less likely to be released through a regular DW expansion than Imposter Ditto or another non-legend). I'm just saying that, given that Korea got Rayquaza (the only difference between it and the one available in HG/SS being that you have the option of putting it in a Dream Ball), it could be worse. Nicknames aren't much, but it's more of a difference from the previous event Arceus than some alternative winners might have had.
Would something with an unreleased hidden ability be better? Of course. But Arceus won, so try to look at whatever positives it has over the alternatives. It is an "own OT" event that, due to the lack of the Azure Flute in Gen 4, is only available through the Dream World. Yes, it's the same one Japan got. But it's still something the international games have not had access to before.
Honestly, I think that the fact that no hidden ability Pokemon won in Japan, Korea, or internationally probably means that they'll just be given out later. It's a matter of possibly getting something new
sooner that didn't end up happening rather than the possibility of getting something new
at all.