They seem to be keeping up a tradition, but they are using boats these days that don't look very well suited for surf sailing. Maybe the giant jib on a TheMightyHobie18 is there to help get out thru the surf. the little jibs on the boats in the videos don't look like they are helping to pull the boats out thru the waves much.

I agree with the above statement. That's why I still like the overall versatility of my Nacra 6.0na. A huge jib, and hulls that cut more than plane over the waves on the beach. Using the sails to steer until out past the last sand bar, etc.