That won’t be helping, particularly with the Naim DIN cables. Here’s the FAQ on DIN connection.
You may decide to take that with a grain of salt but when I’ve had two signal grounds, from a CD player and a streamer set to chassis the degradation was quite noticeable.
There’s also a safety angle, Naim boxes are not double insulated but connected to their own ground pin in the power connector and rely on a current through it to blow the fuse in the event of a fault.