On the one hand, as an engineer who has reported to and worked with many MBAs, I totally get it. In no way does an MBA give someone any ability to effectively work with or support teams they wouldn't have been able to lead pre-MBA. But unfortunately an MBA often gives people the _belief_ that they can do so.
On the other hand, as a Harvard MBA, I loved the material and program. It was 20 months to recover from burnout, learn from brilliant and passionate professors, and broaden my knowledge in directions I would have been hard-pressed to pursue on my own. When I grew in my career to lead organizations of hundreds and thousands, and had to navigate a larger commercial context, my MBA made me much better at that job.
The MBA was originally intended to equip high-potential, early-career contributors (specifically engineers!) with the skills and context they would need to someday become an organizational leader. And it still can be! Unfortunately though that's no longer the standard trajectory, and I don't know that that's for the best.