I have a male friend who has a wicked evil mother (she really is, toxic is a kind word for her). My male friend was brought up to think that breasts / breastfeeding was dirty, encouraged men to oggle at the woman, that she was "asking for it" etc etc. it was seen, in her eyes as utterly wrong to do, and certainly in public.
My male friend then met me and I fed my daughter as I knew I wanted to. He was educated by me as he saw me feed and grow my daughter.
He had been fed a tararge of incorrect, damaging information about something that is so normal and natural, he was completely eluded as to why women did it.
He is now fully supportive and a male advocate of breast feeding, even helping his niece recently and putting me in touch with her to support her.
To me, there are people around like his mum that have that view and will not change that.
There are people like my male friend who need educating.
Stories like the OP's link make it vitally important for us to continue to educate and spread the word that it is normal and natural way of feeding a baby. The more people that chose to feed in public, the more it becomes normal and a "non issue" as it is in many European countries.