Wouldn't this be a bit like wilderness hikers calling for a cull of Grizzly bears or something? I think surfing is awesome, but you better know damn well it's a possibility down there.

I watched a docu some years back after the same thing was happening with Tiger shark attacks all around the same popular beach in Hawaii somewhere. Instead of a cull they brought in some scientists to tag and track a whole bunch of them. What they found was in the next couple of weeks, practically every single one went all over the globe in a completely independent pattern, they just follow warm currents or the smell of prey and were in no way regulars in the area where all these attacks happened, it was all different ones. I have no idea if different types of shark are more territorial, but wouldn't it be worth trying to figure out first?