No, it will only affect ordering, and I believe all of our handlers so far are independent of order.  A handler for foo.*.* will be called before a handler register for "foo" given an event fired as "foo.bar.baz" (most specific to least specific).

Also, it would only match events of the shape `after-call.SOMETHING.SOMETHING`.  If something fired an `after-call.SOMETHING`, or just `after-call`, this wouldn't be called.  That's probably a good thing.