I don't care how good the engineers were, I wouldn't fancy flying an aeroplane which had suffered an in-flight structural failure in which the wing fell off, then a parachute deployment, then a drop onto the ground at 20mph.
Plenty of Spitfires around that have suffered far worse than that and are flying again!
An aircraft, like any machine, is merely an assembly of parts. Any damaged parts can always be replaced and the machine restored to as new condition, it's just a matter of whether it's economically viable or not.
If man can make it, man can repair it.