To be fair, there was a brief bit along the lines of "because the easy, low-hanging fruit, web apps in Java jobs are the first ones to get outsourced". Whether that's really true or not is another matter.
I'm all for shifting CS education away from easily outsourced commodity skills, but Dr. Dewar goes beyond that and argues that safety-critical embedded systems is where a CS education should be focusing. I'm sure if you asked a CEO of another tech company with a different technology focus you'd get a completely different take on what a CS department should be instilling into its students. Dewar is just another special interest lobbying for changes that will benefit his own industry.