Even if you believe it's an accurate term, I find it a bit dimunutive or even condescending.
It solves for the decades-old "well now what?" mid-career dilemma where an engineer would have decide if they wanted to keep doing what they love (i.e. coding) or go into management for the comp but leave the work they love behind.
I found it freeing. Not at all condescending.
for one thing, it defines where they are in the sexual harassment stack. as an IC you require only an hour of training a year and you can freely have relationships with people who aren’t in you mgmt chain. stuff like that.
On the other hand, one of my former coworkers when I was an IC is now my wife....