I wonder if you'd have had this impression if you hadn't known that it was algorithmically created. Could be an interesting test to make, a turing test of sorts.

It’s very much like comparing AI generated human faces with faces from stock photos, you’d have to pay attention to weird artefacts and quirks. The use depends on what it needs to be used for, and for AI stuff I think it’s mostly for generic background that nobody cares too much to find those quirks.

This is anecdata, but the SoundRaw-generated audio I use on about 50% of my YouTube videos generates significantly more adverse comments than the stock audio on the remainder.