We have useless management jargons designed to mislead and confuse, like "right-sizing", "let go", "efficiency", "synergize", "leverage", etc. Which really means very common words but created to make very mundane ideas sounded grand. Yes, absolutely agree these jargons hurt morale and collaboration, good luck trying to get management to change this practice.
Then there are useful technical jargons that actually means something and communicate a lot of information quickly. These HELPED collaboration among the competent employees.
And then there are also competent new employees and also incompetent ones. The competent ones light up at the proper use of technical jargons because they understand them, while the incompetent ones felt sad finding out they were incompetent.
I doubt the study is capable of distinguishing between these differences.