Park skiing and back country skiing are both incredible. That is a terrible analogy.
A better analogy to compare skateboarding and longboarding with skiing could be
What's cooler? a guy tossing a cork 7 on normal park skis or on snowblades?
skateboards are to longboards like skis are to snowblades.
and to back up my statement, "put him on a real skateboard and see how "good" he really is." is honestly such a good point. Because I can hop on a longboard and do every trick he did in that video. All his slides, his shuvs, big spins and his lame ass ballerina walking.
He can't get on a skateboard and do an iota of what I can do on a skateboard.
Longboarding is a fucking joke.