How on earth is it down to 'woman' logic? I'm a woman and wouldn't hesitate to tell my mate that their shower sucks.
Your friend is just being silly. Nothing to do with being female.
Her mom and sis agree with her, so it might just be their female bloodline... but then YOU are a woman on a computer-focused forum, so you might be the exception

As for the poll, something like 'Do you agree that her colleague would be insulted by her sorting the shower?'