I think that the broad strokes capture something real. Namely that an MBA does not qualify you to run a tech company. As your examples show, it also doesn't d

I think that the broad strokes capture something real. Namely that an MBA does not qualify you to run a tech company. As your examples show, it also doesn't disqualify you. In fact there are plenty of roles where it brings value. But the model of "I have an MBA, I can run any kind of business" is dramatically false. You need to have useful theories about how the company actually works to run it. And the theories by which tech companies work usually make a lot more sense if you have a tech background. There are exceptions - for example Meg Whitman did an excellent job of building eBay when she took over early on - but they are notable as exceptions. And I know of no exceptions among companies who are in one way or another primarily selling their tech expertise.