When I mastered my recent album, with a mastering engineer I'd not worked with before, he was using similar AI tech - Ozone's version - to separate out the drums, bass, vocals etc. Normally, I work with an ME who gives my tracks a listen in advance and simply sends me fix-it notes before we start proper work. It was weird - and nervewracking - to try the new AI biz, but the results were fine, so...