I really don't understand what Loeb is doing here. At this point in Thompson's career, whether he has a CS degree or not just seems completely immaterial. I can appreciate the "trust" issue, but Yahoo is in such a bad place that distracting the executive team even more seems like a really bad idea.
The only thing that makes sense to me is that Loeb has his own candidate he wants in the top spot, so he's going to torpedo anybody he can to get that person there.