From an audience perspective, if you use an AI generated site, I'm just assuming your product is shit. And not even because I'm opposed to the way AI is being used in many places (though I am) but for the same reason I don't buy products that advertise with shitty commercials that look like they were filmed in 2006 on a budget of $500. If you don't have a marketing budget for proper advertising, I'm assuming your product is some fly-by-night garbage that's likely to break on first use, if not an outright scam.
Is that fair? No probably not, but I don't know what to tell you. That's always been a rule of thumb for me: if the marketing presence of anything, services, products, tooling, what have you is cheaply/poorly made, I avoid it. I always have almost instinctively.