Cool. You could be hated by both surfers and jetskiers. (And spend a ton of money doing so!)
LOL
Because the surfers would have mad envy.
You're looking at it the wrong way. This is being sold as a novelty in most cases. This would be annoying to riders who want to calmly sit in the surf and yawn. It would be annoying to jet skiers trying to race or tube.
Looking at this from another angle, it is small and light enough it would probably work just as good as any other surf board. Imagine if you no longer needed a jet ski to tow you for a drop-in to a huge wave. Imagine if you live in an area with sand bars just off shore that you couldn't otherwise surf. Imagine if you live in an area with cliffs with a sick beach just down the way that you otherwise can't access. Imagine if you have long waves and no longer half to paddle a 1/4 mile out to the surf, so even though you don't surf with the motor, you can now access 3 times as many waves in a day.
Something like this give surfers the ability to get anywhere they want to surf, then shut it down and surf.
Check out this video... How archaic.