Yeah that’s a good point, if you have lots of disparate systems that don’t have standard coding then the codes wouldn’t be of much use. I can see how standardizing that sort of things would be a huge effort, so in that context the approach makes sense.

I also assume that the humans have the final say, but in most cases I imagine having the computer do the initial routing will get better results than doing nothing at all while humans figure out what the overall picture is.