My retro fitted DRL’s are a very similar installation to yours, using slightly different components.
My NC had it’s first MOT insp. last month since fitting them.
I disconnected the DRL’s prior to the MOT, however the MOT inspector informed me that due to the age and specification of my 07 plate NC he wasn’t actually looking to inspect them as they weren’t on his sheet for my car.
I reconnected them after the insp was completed then asked his opionion and he was quite happy with their installation and function ( mine turn off when main beam is on dipped or full, however stay on with just side lights and/or Fog lights selected on).