The thing is, in many corporate and government settings, OSI is trusted by default as "this is open source", and anything not explicitly covered by OSI will cause you a world of pain with your legal department to get an exception.
I once had to go to lawyers to get a license approved on a lib that went something along the lines of "this work is in the public domain; do whatever the fuck you want with it, just don't come crawling to me for help". I'm paraphrasing from ~20-year-old memories here, but I do distinctly remember the profanity. It elicited a chuckle from the lawyer and something along the lines of "I wish all of these were this simple".
IBM wanted to use it but their lawyers balked at the added restriction. They wrote to the author to see if it could be removed. The author wrote back with, “I give permission for IBM, its customers, partners, and minions, to use JSLint for evil.”
"DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE"
And legal departments don't really like the "but, like, what's the chance they actually use us?" argument.