[flaminHotSpeedo]

I think your comment is circling the crux of the issue. Technical individual contributors see the results of bad management decisions and attribute blame to an easy, but tangible target (MBA's), which crucially has a "solution" that appeals to them: ignore the bean counters and let me do my own thing.

Good leaders don't need to be technical, though it helps, and just as an engineering degree doesn't guarantee a good IC, an MBA doesn't guarantee a good leader. But it's less appealing to complain about bad employees, and also it's easy to forget that even good employees (on both "sides" of the IC/management divide) can make bad decisions if there's incomplete info and someone has to make a judgement call