Who decides what's a chilul hashem? I'm pretty sure according to the Rambam, the biggest chilul hashem is actually committing a sin. it's not our self conscious perception of the non-jews perception of of our customs and practices. I don't even believe that the average non-Jewish believer has as hard as a time respecting these papers non women policy as our self conscious modern orthodox have and hence perceive to be a chilul hashem.
Though perhaps in certain instancees it may be a "Chasah Eivah" but that's not a Chilul Hashem as far as I know.