What I've tend to find is that although almost everyone listens to some form of music, the average person tends to like things which are squarely in the middle of the gaussian curve, and that are inherently very predictable as though the creator had chosen the most stastically likely outcome for every creative decision they made while creating it. Similar trends with almost anything creative, cinema, literature, food etc.

This is basically what all the Suno creations sound like to me, which is to say they definitely have a market, but that market isn't for people who have a more than average interest in music.