Stance for board sports is nearly even, one analysis shows 56% regular vs 44% goofy [1]. It's not like handedness at all. Not sure why one was designated "normal" and the other "weird" when it's so close. My guess is that there was a very small group of skaters that came up with the name, and by chance most of them happened to be regular.
Naming things is weird. In movement/dance description, the name of the typical walk is "contrabody", but if you move your right arm with your right leg, that's called "natural".
1. https://blog.benw.xyz/2013/11/the-real-goofy-vs-regular-a-lo...