In normal play, you are absolutely right about Clawtizer. In pre release play though it hardly matters. What matters is that it is a quick stage one Pokémon that can hit relatively hard.
For the record I got Volcanion, then ended up wrangling to get Hoopa and Clawtizer as well. All I need to figure out how to get is Yanmega. I think that's the one thing I dislike about the current structure, that there are four promo cards each to chase after rather than only one, and that is if one isn't concerned about the STAFF version where it would then be eight.