That comment reminds me of the nasty remarks I used to read on sites that I intentionally avoid now.....
I’m not being nasty just simply giving a practical theory as to why the orca did that. I had a girlfriend who was walking with me in a neighborhood and a pitbull tried to attack her. She just happened to be on her period at that time. I theory that since the dog was downwind and smelled blood it was what attracted him to her like a moth to lightbulb. You have to keep in mind that orcas are carnivorous and can smell blood in the water miles and miles away like sharks.