Do you combine your inputs with those of others when using XMR? You do. So it's a mixer. We can refer to the other users as "mixers" instead of attributing it solely to the network, if you're concerned about the semantics.
So the cash register at the supermarket is the mixer: I get different inputs in return for the inputs I give them.Bwahahaha, time to seize all the cash registers at Walmart!
