I've come to a very similar conclusion. Outrage culture does have a way of disproportionately targeting those on the spectrum as well as people who might suffer from ADHD/ADD. People who fall into those categories will often be a bit more impulsive when saying whatever's on their mind and will by definition have quite different ways of thinking about things. Simply telling one of these people to stop saying stupid things isn't going to work and makes the person come across as being just as ignorant.