It probably didn't achieve anything per your post above where you say it works fine without it. However, if for some reason it didn't, it achieved me not having to lay under my panel in an uncomfortable position, bloody hands from reaching up to get into the connector and more bloody hands to fish the wire through all my grommets/nutplates to get it to the grounding block. The top skin is still off right now but not for long. What you can't see in the picture is all the goodies down below the arinc that my hands would have to get past.
(if anyone is wondering the big coil of wires on the left is for a future HDX if needed)