Call me progressive but I like to let my guns transition if they want. Maybe they are non-binary.
But seriously I don’t see any benefit.
Then don’t worry about it, really. It’s just a little added security that could potentially keep an owner out of trouble, perhaps offering a little light in the grey area and maybe even ward off overly inquisitive people who may otherwise try to be good citizens and involve themselves to the point of making trouble. If the question were to ever come up about whether or not the receiver started it’s firearm life out as a pistol, being labeled as such just gives one another leg to stand on. If you can tell me a better reason to not I’ll listen, but mine will still say pistol on the lower. Because it’s the ATF I have to worry about, not what anyone else thinks.