I recall something about that. The Gnats were to be equipped as piloted cruise missiles, with the pilots ejecting before impact. (I doubt they'd have bothered). Presumably the Vulcan crew would take the advice to fly on, find a nice Mongolian* girl and settle down, there being nothing to which to return home.
*Other East Asiatic peoples are also available. Limited time offer on various nomadic tribes, regrettably.
Taking a stroll with a mate along a river bank, we turned a corner to be met by a surprised German shepherd. An orderly retreat was called; then his friends appeared in support. A flock of flapping, honking, blarting geese.
That sped us on our way. Total rout!