I totally agree with you, apples and oranges, from our perspective. I think it's a question of who the target audience is for the documentary. People like my in-laws don't see SCA fighting and kendo as being significantly different. Frankly, arguing vehemently how our sticks, culottes, and mittens are clearly so very much more correct than theirs comes across like arguing whether or not the NCC-1701a Enterprise is better than the NCC-1701d Enterprise and which would be ore likely to win in a fight with a Star Destroyer. If the documentary is for people like that, and my (admittedly entirely uninformed) assumption was that it is, then I think it's worth showing the differences side-by-side. I think the vast majority of people only see people hitting each other with sticks.