You're correct, however if you've ever worked in a distribution center you'd know that single-operation dumb bots have limited usefulness. There's plenty of times when the product picker's task is: go to location, open case, take out product, place safely on pallet/wire rack/belt so that it won't get wrecked or dropped, scan data into needlessly complicated proprietary software that's not compatible with anything else, clean up after yourself (out the last guy), repeat.

There's a shocking amount of manual labor required in the industry that requires something like a person to do in distribution, just because it's too complicated and multifaceted for current machines to handle. My example didn't even cover half of the job.