I don't think that guerilla warfare is considered "unfair" by the US military today (can't speak for the 70s), the US still encourages it when it suits them, especially when encouraging regime change. Asymmetrical warfare requires guerilla tactics by the less conventionally powerful armies against more conventional armies.
The schools conveniently ignored the Native American assistance in fighting the British, and overstate the actual impact of the peasant rebellion. It was an organized army with discipline founded on the French that really cemented the colonists win over the British. George Washington really is one of the few Americans that was as amazing as his legend, if not more so.
Americans also really don't give enough credit to the French for their assistance. We sort of gloss over that point, however we did at least return the favor in WW1 and WW2 as well as taking over the mission in Vietnam. So I think I pretty much wrote all of this to agree that yes our narratives definitely evolve.
Have an awesome weekend.