Nice job indeed. If you want to make a more specific video about FH2 one day, here are a lot of people that can give you specific and detailed info about what the game offers and what the situation is like.
As for American players, there are gamenights on the American WaW public server on Thursday and Friday evenings. I'm personally European, but you might want to check that out.
Furthermore, there are tournaments being common for many years in FH2. The communities WaW and Forgotten Honor both offer tournaments regularly, where 2 sides fight each other once weekly over a few months with the focus on command structure, teamwork and fun. I know many players that don't play much public but enjoy the tournaments very much and they are definitely not a too small part of the FH2 community. Also, the tournaments bring the fun of FH2 to a different dimension for many players.
So FH2 can't be judged by the public servers entirely.
Anyway, nice you feature FH2 in a video, the mod needs as much promotion and public attention as possible and your analysis from a neutral standpoint is quite accurate besides some details mentioned in this thread. So thank you very much!