In my eyes it comes down to the type of joint you are dealing with. If it's a lap joint then I agree with the majority - Leave it alone, it will be fine. You'll destroy the wing before the glue joint fails. If on the other hand, it's a butt joint then I would side with the "take it apart" faction. Sand the surfaces well to remove the 5 minute - it hasn't penetrated so much that you can't remove the majority of it and reglue with 30 minute. My limited experience (limited because I don't like 5 minute epoxy), 5 minute tends to remain soft when cured and I wouldn't trust it where bending is present.