I as an engineer like neither of those things. Research the market, create a product per spec, then write documents in markdown. The idea of business are not foreign to us, there are plenty of engineers who start business. And I think the balance is tipping over to the engineers.
In my opinion we don't need a dedicated decision making class. decision making is a skill that engineer can acquire - no need to involve people with no technical understanding into the equation.
This statement seems to trivialize the skills necessary for good decision making. I would argue good risk based decisions and awareness of cognitive biases (not to mention more “science” based decisions from fields like operations research) probably should be based in formal mentoring/instruction.
So, it's easy for engineers to ridicule them, while still keeping well within their own comfort zone. It doesn't add credibility though, I agree.