I get your point and it may already be possible to overclock NEXUS while wired via USB using port drivers, but NEXUS is designed for a specific purpose (wireless motion control) and straying from that purpose is likely to create more problems than it solves.
Xbox, DualShock and DualSense controllers, at least one of which we all own, can already fulfil the suggested purpose for 1ms input via PC or Titan Two (Activision uses T2 in CoD tournaments). NEXUS maybe too, I don’t think any of us has tested overclocking it yet.
Targeting a single polling rate on NEXUS ensures consistent performance with Smart Translation and aim assist, which is the objective here. Adding more polling rates will create unpredictability & unreliability and significantly more support & troubleshooting, so I don’t see it happening. I’m not OBsIV though, so I’m not speaking on behalf of XIM, but that’d be my guess if 1000Hz isn’t supported.
I also don’t see NEXUS being allowed in eSports competitions on console or PC because aiming is vastly superior to a standard controller, so 1000Hz overclocking in the eSports context is probably a moot discussion.
I appreciate the reasoning behind the request, I just don’t see NEXUS being allowed under eSports tournament rules, nor any tangible benefit to the core NEXUS experience by offering 1000Hz (jitter, audio and battery life will be problems).