There is a difference between being somewhat edgy and improper ("no bullshit") and actively working against one's aims by including copy that is confrontational and discouraging to the most insecure segment of one's audience ("you have a math problem; you need therapy"). Those whom it does not bother might appreciate this continuation of his tone, but it is horribly damaging with the audience that it claims to target.

I have some experience encouraging groups who tend to be less sure of their abilities in an academic subject to study that subject and am friends with many people who are much more involved in these efforts, and I know that being confrontational is counterproductive and that you have to be very careful about how you suggest to them that they have a "problem", even if you are telling them that they can overcome that problem. You want to stay positive and show empathy toward their struggles, emphasizing that the struggles are not any failing or inherent shortcoming on their part and are very common.