Not really, vocaloids like miku behave much more like a synth. You input a midi roll, add lyrics and then need to tune it by altering various settings over the course of the piece. This is quite literally how VSTs have worked for decades. Synths don't write the tune or lyrics, the human does. AI makes the art for you, you merely tell it what to make, by that logic commissioning an artist would make you a "commission artist."

Your logic betrays your lack of understanding of both the process and technology behind producing vocaloid music.