Go to Google Images and search for "Prostate Cancer Foundation". Lots of squiggles, ribbons and vaguely represented humans. Not a lot of raised arms or dancing, but I digress.

It's not serious to post a bunch of pictures, call it an "image-based essay", and pretend it talks by itself. It needs some analysis by the author or, at least, a bit of comparison with logos aimed at other demographics.

Also, I would like to know how exactly do squiggles, ribbons and spirals reinforce gender stereotypes.

ETA: I understand the essay was made by an artist, not a sociologist, but even art needs some form of analysis and interpretation, especially when it deals with issues such as gender stereotyping.