I think Tim is just being sensitive to the A family, diplomatic and, politically correct. It is a LOT easier if they have the A family cooperation and support. Maybe he met with MN first (and it sounded like a looong meeting) then plans to smooth things over with the A's. To bring Caylee home, either way. If she is alive and TXEQ is wasting their time then, what's the harm? It can help their case.
TXEQ Website does state, "Special note: Texas EquuSearch can only accept a missing person case if it's been filed the appropriate law enforcement agency and a case number has been assigned.
Requests must be made by the family of the missing person and/or the law enforcement agency handling the case. "
Maybe their policy is to respect the wishes of the family first.
http://www.texasequusearch.org/report_missingperson.html