Had the Vulcan trust runout of money? Did they not have any cash for a tribute film; even a chase plane for the tour? Surely, within the ranks of the trust members there were a few that had access to a suitable air to air photo plane? A coordinated scheme to launch locally and film the tour; to save costs rather than a full tour wingman? Much of history has gone unseen.
Thread creep: I was shocked that no documentary was made of the first round the world Burt Rutan a/c trip; nor the 1st balloon; nor many other 1st's in aviation. OK, this was a last, but the connecting theme is historical moments in aviation. A/C are getting less & less items of affection to the public. Bit like cars; they all look the same. The Vulcan might have been one of the last of those.