Yeah, I admit, it's a stretch. Not sure about coriander in Oberon, but it does have orange peel and wheat. It's missing the most important ingredient, which is an actual wit yeast. I believe they use their house ale yeast. Same yeast that's in their pale ale and two hearted. I'd have to look that up to be sure.
I think the similarities are that it's a wheat beer, but not brewed with hefe yeast, and flavored with orange peel, so it's similar in some ways.
Blue Moon is way to clean tasting to be a true wit IMO. They claim "Belgian Wit" on the bottle, but I really don't think they ferment with wit yeast. Hoegaarden is way more to style than Blue Moon, but you should try Celis White or Allagash's Wit. I think they are both better tasting wits and award winners to boot.