Hey ~inquiry,
I often surprise folks by typing (even lengthy) URLs right into the address bar :)
That being said, the copy+pasting would maybe reduce the careless visit of shady URLs --- alas, it is much easier for the IT department to tell everyone "you stupid idiot clicked on that link". But it would be a lot less cleaning up damages by just disabling the automatism. And for that reason I don't use terminal window, which "recognize" URLs. I rather (partially) copy and paste. Cheers!