Ye wouldn't preview an AI snippet like that.
The first snippet he's uploaded to his own social media.
It's meant to generate hype not a fucking civil war in the fanbase.
Think about the way he previewed it as well, integrating it into/disguising it as an ad for yeezy.com
It's clear he cares about this album rollout a lot.
So if he did want to use and preview AI, it would be at least a well finished track at an LP like 'this is the future', not just a 4 second mumble bar.
My theory is, he wanted to preview a beat (which does sound fire) and let the snippet have unfinished vocals cause thats not what it was about.