Preface: I'm generally an AI skeptic.
There are a LOT of people who are doing "business work" for a living, which is significantly different than hands-on coding. AI gives these people a way to just automate all of the (maybe necessary) work that they don't want to do.
The final product being 80% good enough is fine. It is done and doesn't require them to spend time on something they don't want to do.
More often than not, it is at 80% today.