Even on the RV-12iS, which has a different Section 32 .. not all holes have snap bushings.
I would leave them out, as it was definitely intentional by the factory. As for why, I can only guess that the cable deflection, being so close to the pulleys at those points, is minimal and there is no chance of rubbing there.
Rob Carsey, North Brunswick NJ
RV-12iS (N713) / Completed 12/2020
ASEL, Glider, AGI/IGI, LSRM-I, FCC GROL