The worst of all possible outcomes is that one day Laura (and others like her) should awaken into the same harsh reality that blindsided you. And that will happen unless we, as a community, seriously address the tolerance we have for behaviour that simply should not be tolerated. We need to be reminded that it exists, and that while the behaviour might not be universally pervasive, a sort of tolerance of it, whether with a grudge or a giggle, is nearly so.
I truly hope that Laura never has her eyes opened in the way yours were, but that hope hinges largely on the scenery changing in the meantime. "Make your users awesome" was a message we needed to hear, and that cry was silenced not merely by direct action, but by tolerance as well. This message, if anything, is more important. Let those who have ears, at least, hear it.
I loved hearing your experience and I thank you for sharing. There is a difference between saying "your experience is wrong" and saying, as you did, "your experience is incomplete." You have evidence that her experience is incomplete: your own experience contradicts it.
We should care about your experience. Any theory of the world that fails to entertain it as possible is, at best, incomplete. I don't see anything wrong with saying so.