^ true, and the people I know those tensions still exist.
in addition to the pc stuff.. common people are more savvy about martial arts every decade, so, they let themselves open to be critiqued on a blatant error. People know the difference between judo, and muay thai, karate, and Jiu-Jitsu etc. I haven't seen the movie, so, maybe they explain it in the context soemwhere. But, if they don't.. they should have known they were going to get called out.