That's just it isn't it. It's all about describing people in terms of where they should be in the context of 9-5 drudgery, not who they are as actual human beings. Whatever box they put you in, there's a place for you in the post-industrial service economy somewhere. Nobody need be excluded. Except for the poor and all those other people upon whose permanent exclusion from the Big Wheel Of Teamwork the whole fucking system is predicated.
What personality types are best suited to working ten hour shifts in a petrol station kiosk six days a week? What personal qualities best protect workers against hallucinating from sheer boredom, or developing chronic muscle pain from spending every day sat in the poor-quality chair that the well-oiled ideas machine of the human resources department chose because it was the second least-expensive option? Are introverts or extroverts better suited to getting kicked off their zero-hour contracts after six months so that the spokes of the McGillicuddy-Macclesfield Merry-Go-Round of Synergy don't have to give them any sick pay?
It's a legitimisation of a fundamentally shit lifestyle. A reinforcement of the idea that the place you are assigned by your betters is the place where the laws of nature always intended you to be. The content is irrelevant, the use to which that content is put is everything. It is always a stick to beat people with, that's all it fucking is. That's all any of this managment-theory shit ever is. Another rusty nail driven through the same old beating stick.