Sebastien has answered some more specific questions I asked him to try to clear up the difference between Parkour and Freerunning.
Although the answers are not as specific as I hoped for, I feel very positive in that his answers don't rule out the way that people currently use the term Freerunning.
M2: Do you think the PAWA definition of Parkour is "The" defintion, or only "a" definition?
Seb: I don't know what is the Pawa Definition sorry! But Parkour is Parkour but each person can do his own Parkour, This is Free...Running attitude, Who has the truth? For me "the Way" is the truth!
M2: Do you think parkour includes movements like a flip or a wall spin?
Seb: Parkour is for everyone and it's includes what you'd like to include! but Argue isn't and will never be PARKOUR!
M2: Can Freerunning contain these things, a flip or a wall spin? What is the main purpose of Freerunning?
Seb: Freerunning or Parkour it's the same! It's absolutely Free. I prefer definitely the functionality, Parkour is basically efficient!!! People should never forget the basic! Also the positive attitude!!! ;)
Please take note that my goal in this is in no way to set "sides" between Sebastien and Pawa, I asked both of them since they are the ones responsible for the terms "Parkour" and "Freerunning", so I wanted to go to the source.
I appreciate both of their answers. I'm sure this will spawn a new round of conversations, I ask only that people be polite and respectful of other people's views, talk on here as you would to people in person.