I'll chime in here on Tom's side... IF the joint is solid. If it wasn't a struggle to attach the wing halves by sliding the dihedral brace in, then it's not tight enough. The fiberglass tape will help, and in fact - that's what it's there for, extra strength.
The wing halves won't have very high forces pulling them outward, most of the load is trying to either bend the wing up or down(compression on one or both main spars). I fly several planes that aren't glued in the center, so as to make it possible to disassemble for transport+storage, only difference bieng they use bolts and dowels to attach to the fuselage instead of rubber bands.
I'd say somegeek is probably ok in this case, but I would very carefully check the joint to make sure it's seated correctly before adding the fiberglass tape and pressing on.
Hey aero engineer, only thing in a KC-135 that I remember being wood is the floor... besides what some of the pilot's used for brains...