Perhaps, but I don't think that they were punished. The difference I'm getting at here is subtle, but it's the difference between declaring independence and replacing the existing government. Both happen through revolution of some form, but one breaks away from a government you dislike. THat's not punitive. One replaces it and usually punishes the old one.
Declaring independence from a distant seat of government is vastly different and vastly easier than trying to overthrow the local government.
I'm not talking about punishment or punative action. I'm talking about accountability, where being 'held accountable' could be a synonym for 'held responsible'. In this case, the way I used the phrase, Britain was 'held responsible' by simply being told to 'go away'.
But being "held responsible" and being "held accountable" are very different. Holding someone responsible means to blame them. Holding someone accountable means giving them consequences. Many people blame the government for all sorts of things. Only a very small number of those things is the government ever held accountable for.
I agree that many people blamed the British Government for their problems, indeed that was the impetus for the revolution, but accountability of the British government was limited to none.