This might have just happened accidentally...
Typically parts are pulled by people who are given a bin and location, sometimes description. The average order picker usually does not know any better and just grabs an item from that bin and location, right or wrong, and places it in the box to be shipped to you.
I ordered a transmission pan from RA for my grandmothers old Jeep Liberty a while back and was shipped what looked like an internal transmission part. Close, but not quite. Ironically the tag on the plastic bag of what I got said "transmission pan part #xxxxxx". Carefully filled out the return request and was able to ship back the wrong part without any extra cost as they provided me a return shipping FedEx label.
That said a lot of who is stocking these bins and locations, but sometimes things happen.
Just throwing this out there.