The problem with your theory is that chiefs don't work for/report to the MSP Colonel nor to the governor. Just like when AG Harshbarger tried to order local chiefs to confiscate FFLs from those operating from their residences. I had two chiefs tell me that the AG could go F himself as the chief doesn't answer to him.
This will be an interesting experiment, but it won't force chiefs to do anything. And the Colonel currently has a clerical person handling licensing of dealers/instructors/etc. so it would likely be shuffled off to her and then perhaps to the FRB Director, assuming that the MSP took any action on the applications.
It's also important to remember that MSP delegated the processing of of non-resident temporary LTC's under MGL c. 140 s. 131F to FRB (over a decade ago). (Though MSP is the identified issuing authority on those, the process, including the decision to issue, deny, or revoke is handled by FRB).
Interestingly, and theoretically at least, the temporary license statute (131F) could also provide an avenue to licensure to residents who live outside the jurisdiction of a local licensing authority.
(color added for emphasis)to a nonresident or any person not falling within the jurisdiction of a local licensing authority or to an alien that resides outside the commonwealth for purposes of firearms competition and subject to such terms and conditions as said colonel may deem proper
I have no clue as to whether, or not, a license has ever been processed for a resident under that section or if they have even promulgated an application form for that purpose (or if there are currently any towns without a local licensing authority)....