Hi, sorry for the late response, but I have had a messy month of being out of town, moving right after, and someone dropping off a puppy on my porch in a crate and having to take care of it as I potty train him and look to foster him out (yes, really; my life just has this shit happen).
The lecture is based directly on an Open Yale lecture course (link). I have heard similar issues with the lecture, but trust me, I have actually vetted the information in it. These are the comments of a psychology graduate student friend who looked over the lecture on the point, but tl;dr it very much is not pseudoscience but simply one explanation of many in the field which has evidence but not proof.
The autism thing is a valid point that the lecture should have addressed more evenly to explain that there is a diagnostic bias, but the thing is the even accounting for that bias in diagnosing, most studies have agreed that it is still more common in males (this being one of them); there is a large body of research to show that ASD in particular, as well as many other development disorders, are not equally prevalent among the sexes, and to quote that link:
“The fact that we see sex biases in disease all across the body gives credence to the notion that the sex bias in autism isn’t simply emerging from diagnostic inequities and gendered expectations of what the conditions looks like,” says Page, who is also a professor of biology at Massachusetts Institute of Technology and an investigator at the Howard Hughes Medical Institute (HHMI).