At 2:21 you can see that the central fin is not centered on the head, but rather shifted forward. This was the case also in the 2018-2019 stb freewaves, and was a feature introduced to balance the easy spinout of those boards.
Then I wonder, why keeping this feature also for the 2020 version, which is a whole new board? Wouldn't it make sense to move the central fin box forward instead?
Check out the 2020 Fanatic Free Wave
Look mom! No more square tail!