OK so maybe the surf industry is not a good example of the utility of asymmetric shapes
Hold on, now I have to go back into my personal historical file to show you something.
Here's a couple of my asyms circa 1967, (the left two) see the tail blocks, it depended on what you wanted it for. If you wanted to make your bottom turns more rad, it went one way, if you wanted to make your top turns more rad, it went the other way.
Then the boards started to become shorter, so the asyms faded away. But as you can see, they go way back, and some were swearing by them.
Me? I told myself they were working,,,,,,,,, ehh.