Is this unique to my collection or this generally true of contra dances?
I've had a similar observation (not in my deck necessarily but also from the dance programs I encounter on the floor) - in many cases the Ladies are the ones getting the run around/doing the most "single role" action. I haven't done the percentages, but to me it seems the Gents' same role action is typically limited to allemandes.
This is something I've been using to inform my own dance compositions, creating either more even or Gents-heavy dances (featuring other moves) which could balance things out in aggregate.