Earlier quoted context omitted.
You aren’t supposed to eat ground beef rare. Steaks you can. If you don’t know your steak is partially ground beef, that’s the issue.
I think I'm missing what you're worried about. The article says that pink slime can be called "ground beef", not that it can be called steak.
IMO, calling it ground beef is very misleading unless you are farmiliar with the processes used.