You're going to hear both opinions, I'm sure. IMO, I'd re-do them with 30 minute epoxy if that's what's called for in the instructions.

If you do decide to redo the wings, then it shouldn't be too difficult to take these wings apart. Get a covering heat gun, and go over the joints slowly to heat them up. As they get warm, wiggle the joints carefully until they start to loosen up...with a bit of patience, you'll be able to pull them apart....the heat will soften the epoxy. Once they're apart, do some sanding to remove the old epoxy and clean up the joints, and then re-glue them using the "correct" epoxy.

You may have to do a bit of recovering around those joints as well, as the heat may damage the existing covering.