Displaying pictures of healthy, fit women in advertising is not harmful, nor does the author actually make that point. All she does is say that it's true, without any argument to back it up. We're simply supposed to accept that because she says it's harmful, it is. There's nothing degrading or overly sexualized about these ads. The fact that the models look good does not need to be a threat to anybody.

I was with the author as long as it was a complaint about how repetitive and uninspired the ads were, but when it morphed into "pictures of healthy people trigger me" is where she lost me. If you are so insecure you can't see an image of a person who is better looking than you are without freaking out, that is nobody's problem but your own. It's not instagram's fault.