Collision Insurance? Report: Car Rental from Dollar

I think this is probably OK, since the "insurance" is really a policy that covers the credit card company in the USA, not the individual renter in Mexico, so the reimbursement to the car rental company comes directly from VISA, AMEX etc. not from an insurance company. When I saw the post I wondered if it was "first dollar" primary coverage, rather than being secondary coverage as most of these "policies are. The Alaska VISA site clearly states that, out of your "home country," it is primary coverage. (In your home country it is secondary.) I would think that if there were an exception for Mexico, it would be clearly stated in their conditions of coverage.