Why would anyone want to discard the end result there? It matters.
CEO did not make his point by yelling. The point was made by explanation that followed the yelling. So yes, you are right, yelling did shut down the brains of the author for a while, but wasn't that the idea? To get him out of "know-all" attitude? To reboot the brain and feed a new program into it?
Not that I like this way of getting the point across, but in this case it did work.
The main problem is, that's not the end result, only the immediate result. The end result was likely that people were scared to express opinions to the CEO, and a culture of disrespect and hostility developed in the company. Ever heard of Ardent before? Me neither.
