Maybe. A bad programmer is unlikely to get something even working so in that world nobody will depend on it because they can't even use it. A bad AI programmer (or non-programmer) can get the thing working so people will depend on it - the blast radius is now higher.
No, it's much worse. It will take much more time to review and notice that it doesn't actually solve the problem at hand.
On average, the output is still better than what a bad programmer would produce.