Pretty fun! I bet if they weighted those boats over to a healthy surf wake, it would get pretty interesting. The wake looked small and washed out, but probably not a bad way to start out.
I just got an idea similar to that, load 2 boats down and stagger them... you could probably surf from one wake to the other, and then slow down the boat you just left so you could go back... maybe not... innovative for sure, pretty cool stuff