That's definitely an interesting difference. Do you think excluding Information degrees results in a more relevant number? If so, why?

People with CS degrees tend to be the ones building new software. Information degrees vary a lot, but tend to have decreased math requirements and be more focused on the application of technology. As a software engineer working in the bay area, I have seen hundreds of engineers with CS degrees and zero engineers with information degrees - in my experience there is a stark difference, and I would be surprised and interested if the data showed otherwise.

Just to add an anecdote, Most of the companies I've worked for screen out non CS degree's except for exceptional portfolios. Not sure how wide spread this is.