The difference between parkour and freerunning as stated by several founders

On r/parkour I always see a lot of arguments on the difference between parkour and freerunning. I thought it would be good for people to see the opinion of the founders on this topic. The clip is part of a Q&A session from American Rendevous in Columbus last year. Some of the founders of parkour came over from france to lead a seminar. When asked about the difference of parkour and freerunning they basicly said what you call it does not matter. Train how you want and what you want to do. That is what is most important, not what you call it. video