Wow, a kickstand and a spoke holder, my two nominees for most useless bike accessories on one bike!
well the spoke holders are certainly silly, particularly given the usual Derailleur wheel set
uses 3 different lengths of spokes . 2 on the rear, and 1 on the front.
do those spokes fit Any of them?
at least if you fit them on top of the Right side they catch chain slap that may chip the paint.
thread lock the nipples and leave them there , pack the actual spare spokes in your panniers.
tape them to the stiffener panel, rear bag gets the appropriate length for its side.