When DSP is part of the product, Moondrop thinks this IEM will sound worse listening to these with a regular cable, and any other IEMs with this cable will probably also sound worse. This is like asking for a bluetooth speaker to have binding posts on the back to use your own speaker wire and amplifier because even $20 logitech speakers can be used with an external amplifier. The DSP in the usb-c connector is fundamentally a part of the product and the way it’s intended to be used. It’s not hard or expensive to add a detachable cable to an IEM, the cable is literally just attached to make the IEM idiot proof, but they’ll still complain.