That one felt more like entertainment to keep people distracted since they couldn't get copying up to a reasonable speed.
It's not an entertainment, it gives more info than just a single stat "estimated time".
linux community is a nerdy bunch and you don't see that in any linux distribution, it's useless even to the nerds with computer stats constantly on display.
As a Linux user - I'd welcome such a feature. Linux is a poor UI landmark, regardless of how nerdy its users are.
Mind that copying files on linux tends to be much faster too, especially once you're copying many small files.