Joisel is known for permanently fighting for his copyrights and pushing to make money with his origami to live of that, which is perfectly right, but doesn't mean his notion of art is correct; anyway, he could had been perfectly taken out of context (it's a one-second part of an interview)
It is an old question, I remember in the spanish forum there was a thread about this. My opinion is the same I gave there and also in the
entry about design in my blog.
"Art is a fine dialogging system between humans. Exposing a creation in which has been (deliberately or not) placed a message and a sense, makes the audience to read and translate it into its own coded experience of reality (H. Maturana says the only reality we can be sure is ours, as autopoietic, independent and isolated beings). And one of the most used mechanisms to achieve this dialog is the Representing act, which is the reproduction by a mean (visual, textual, etc) of what can be perceived as real".
Some people has said origami started as a game in Japan came from China, there is no difference in english between playing a game and playing an art. As uruguayan creator Roman Diaz says in his book (Origami for Interpreters), to fold origami from a diagram is like to play following a musical score. At the end, the resulting model can triggers an emotion in the observer. I keep what the girl says in the documentary, origami makes smile and amazement in the childrens, that's enough for me.
I can copy Diaz's introduction (less than half a page) if you like, it's really interesting.