"I am not saying that that is the reality, only a plausible explanation."

Plausible but unlikely, IMO, given so little evidence that other companies are beating the doors down at Arizona Land Department to acquire claims in and around Cochise Country.  On the other hand, a land rush could happen should Aztec Minerals hit high-grade silver during their soon-to-be drilling program at Tombstone.  Having said that, Aztec's target is not deeply buried as were those in the area that belonged to Tombstone Mining.  That is why they surrendered their claims, the targets as defined by ZTEM were too deeply buried to attract partners to financing the drilling given the then prices for copper - not far different from now, as a matter of fact.

For comparison...