The crow hopping irks me more because it is rarely called. The stepping out of the box is probably just an honest mistake, but it is more likely to get called than the crow hop.
From a rule standpoint, it should be a "no pitch" and a ball to the hitter (runners advance). The illegal contact from the hitter can't occur if there is "no pitch".
Do you know a lot of righty slappers?Most lefty slappers who step out of the box know they do it and will get away with it as long as they can. DW has 100's of pictures over the last 8 years of lefty slappers out of the box and never called. One game last spring in HS every lefty slapper was out of the box and never called.