I believe during the time of seven years war, there is nothing to be afraid of the Spanish. The British were right at the door presenting itself. Besides, the locally raised army were natives volunteers. If the majority were disloyal as you assume at this time, non of the natives would have join or there would be more people joining the British.
Nor this has anything to do with Macabebe Scouts nor the any other revolt 100 years before my suggestion. 1898 when Philippines won vs Spain was not Katipunan.
The timeline I suggested was Seven years war, far from any revolts you mentioned, which presented an alternative to Spain which is Britain, with an ilocano Rebellion poised to become a British ally, which would give a possibility of Ilocano dominance in Luzon in case of a British win. Which is conditional hinged on British logistic realities.