Good point. If you really want to nitpick, don't you think they're pigeonholing themselves by picking just one type of skate able surface to put in their name? Asphalt is ok. Anyone who skates spends a lot of time on it, but what about concrete, brick, granite, wood etc.
Dear Slap, I'm sorry I have never once contributed to the actual topic, but instead explored tangents to the topic (most of which are regular). I will do better.