Agreed, when any of these events is left to its own merits, it can easily be labeled as a terrorist act. However in context, they were coordinated (to some degree) to enable the Continental Army to succeed in overthrowing British rule in the colonies. Our own military used a coordinated barrage against Baghdad widely televised as "Shock and Awe". Counted on its own merits, it was large scale terrorism.
Disclaimer: I am a Navy veteran