The video is sic, I agree but why is it that Ruben needs to ride in front of the launch and landing area anyway.
Thats like the problem they are having in Kailua Bay, Oahu. people (general public, kayakers etc) not respecting the 50m of launch area specified for the kiters! It causes massive problems for the kiting community in Kailua and may end up getting the whole thing shut down (refer to post on kiteforum.com by Eric Eck).
Ruben is a great rider, no doubt, but he and his buddies attitude towards the sailboarders (who have probably been using that spot for the last 20 years or more) is shameful. The attitude of others on this forum that disrespect other water users rights is also about as lame as it gets.
And we wonder why we have issues with the rest of the community with regard to the image of kiters!

As with most things, it is the few that make life difficult for the many.
Maybe it's about time to grow up and show some respect for others!
Good winds