Who can take these men seriously??
Hojjat al-Eslam Ali Borhan, Friday prayer leader of Mahriz, says he and the authorities of Mahriz would not tolerate the presence of any woman dressed in manteau (sort of like a raincoat) rather than the traditional chador. The Friday prayer leader said that some people may get used to the presence of naked donkeys without getting sexually excited, but now that the people of Mahriz are used to see women dressed in chador, the manteau would instigate immorality.
What the men "get used to" is the problem, not the objective definition of modesty. Honestly, as I consider a response to the "Biblical" standards of keeping women at home (here), I see more overlap than I like.