There were plenty of homes, barns, outbuildings and other structures burned down with people in them.
One of my distant Murphy ancestors was a young teenager when he escorted Hairbuyer Harris back for trial. You can imagine how well behaved Hairbuyer must have been with a teenager guarding him ~ because a teenager would blow his brains out for looking at him cross-eyed. They're not really adults you know.
The Brits misused the Mohawk warrior society though. For whatever reason the Mohawks avoided the ceremonial cannibalism that usually attended their wars.
The problem I have is with the claim that burning churches was a deliberate British policy. Similarly, although the Allies destroyed thousands of churches in WW II — and at time with people in them — that was not our policy but a result of normal military operations and practices such as aerial bombardment of cities.
I suppose that you mean to refer to British General "Hair Buyer" Hamilton. Bravo for the distinction of having an American ancestor who was a captor and escort of that scoundrel.
The Indians paid dearly for their support for the British. After the Revolution, Americans regarded Indians as an existential menace on the frontier, to be marginalized or eliminated when possible.