I'm not sure if you mean user accessible in terms of User Accessibility or just a typical user having access. I think we're talking about UA, it wouldn't apply

I'm not sure if you mean user accessible in terms of User Accessibility or just a typical user having access. I think we're talking about UA, it wouldn't apply in this case, because they would be using a screen reader and using its features to find and copy the URI (rather than by hovering). In the case of a typical user, I think it does what they want, so it doesn't go against desire and ultimately enhances UX. It's definitely hackish, though. :)