My guess would be the quick learning curve would only apply to common skills such as hopping. I doubt that expert uni or bike specific skills can be attained overnight by experts crossing over in either direction.
In either case it is great to watch riders at that skill level in any discipline.
I think its the common moves is the fast learning, like jump on the wheel up on things....I have ride skateboard for over 5yeras to so maby there is some help from that i dont know......but I found out that jump was the only thing I found verry easy fast....the rest I think will take the time to learn i guess