Mechanically or digitally altered voices does not make for improved singing.
Case in point: Meghan Trainor. He voice is heavily altered, and it sounds horrible. She sounds like a singing robot with no human emotion whatsoever. Everytime I hear "All About That Bass" or "Lips Are Movin'," I immediately change the station. I can tolerate that song she did with John Legend, however, she almost sounds human in that one.
Nevertheless, it makes me wonder if there's any artist out there today who can genuinely sing, and not have to have their voices altered in any way or form.