This is how a ton of AI is operating right now. Both to filter training data and also to filter the results before they go back to the users, there is very often human oversight. And by human oversight I mean the same sort of extremely cheap and exploitable overseas labor that Amazon was using for this.
Ultimately it might be as simple as the fact that even cheap ass labor plus the infrastructure plus the AI itself still costs something and ultimately that something is more than just paying some friggin cashiers at the bloody store to do the job.
I don't get it though - what is wrong with trying different things and seeing if they work or not? If they don't, just pick what you had previously. What's the huge deal?
Ultimately it might be as simple as the fact that even cheap ass labor plus the infrastructure plus the AI itself still costs something and ultimately that something is more than just paying some friggin cashiers at the bloody store to do the job.