Current legality of wires going through the socket "mousehole" for USFA NACs?

Quick question: What is the current legality of putting the wires (epee fwiw) through the socket's "mousehole" (or whatever the right term for that little "tunnel" is)? For a USFA NAC anyway?

If I recall right, it used to be legal, but then it wasn't, and then it was again. But that was some years ago. I am going to my first NAC since 2019 and at least one of my epees came new with the wire through the mousehole.

Will that be okay? Or do I need to redo the socket wiring?

Thanks!