- They could have an computerised lookup of location that isn't AI based very easily. It's just a stock location database.
- Shops move their stock around to get you to search the store and drive sales of other items " you didn't know you wanted".
So now they can't get the shelves stocked having made their staff smaller and given them more questions to answer. They've also given the customer a worse experience because they used AI for a task easily accomplished by normal means, which if successful would drive down sales as people would just buy what they came in for.
A stunning level of idiocy on display.