I think I understand where you're coming from, but I think there's more to Zorn than that. At times I feel that he's gone in so many different directions that there's no "there" there. (I sometimes feel the same way about a very different musician, Chick Corea.) And I too find much of Zorn's work cleverly shallow, or shallowly clever. But on the other hand, baby....
I find a good bit of his output compelling. I love Masada and the News for Lulu project. I even think that his "game" pieces sometimes result in groups of improvisers being provided with just enough structure/guidance to result in some excellent music that wouldn't have happened without Zorn's "rules."
So I like of lot of Zorn's music, even if I don't quite "trust" him.
I don't think we're that far apart. I gave up on Zorn some years ago, so I probably haven't heard as much of his work as you have. What I heard through most of the 80s didn't make me inclined to keep listening.