By the employer's logic, flashing breasts is a sexual overture that would create sexually happier, but possibly sexually aroused gorilla. That state of mind in a gorilla -- possibly a stalking state of mind -- would be potentially life threatening to the flasher, immediately or at some later date.
Imho, there is a large money reward waiting at the end of the litigation rainbow for these women.
Why should any woman be so ashamed of her body, that she is un-willing to show her breasts to an animal?
If anything, this shame is more disturbing, and could be a strong indication of a much more important mental health issue.
It sounded like these women had plenty of other grievences working with this place, or maybe at least with their boss, the well-known and successful trainer. The article mentioned things like storing animal urine in the people's fridge and other "violations". There was mention of them having reported their boss, so there was already a lot of tension by the time these people finally decided to get out of dodge. Their lawyer probably latched onto the breast incident while interviewing them and decided he had a media-driven winner there.
I wonder how it turned out.