I'm not an insurance broker or even knowledgable on all the in's and out's......but I would just recommend anyone to check out the T&C's small print to be sure that policy will pay out without exclusions in those destinations where travel is advised against by the Foreign & Commonwealth Office (FCO).

It's unlikely that any general policy will specifically state Mindanao....it usually just mentions exclusions due to those cases.

A local (Philippine) policy might be a workable route, though I doubt that repatriation would be included. Probably that's not a common feature anyway.....not sure.