@Suiseiseki There is this thing called "colloquially"...
Using "piracy" for this definition isn't "in error" nor "incorrect usage".
Or are you the kind of person that goes around "Well akshually it's not called piracy it's copyright infringement of software" every time someone calls it "piracy"?
Making a copy may require permission (although this is _generally_ granted by either the license or the law), depending on circumstances.
Usage of software, is quite literally the same in that regard.
It's usage may require permission (generally, this means obtaining a license).
Just because you can get your hands on software, doesn't mean you're allowed to use it.