While I appreciate that some FO's are very experienced and just short of upgrade to Capt, the fact remains that many are not.
SOP is designed to improve safety and standardise operations ie covering for the weakest link in the chain, the 200h FO.
As has been pointed out in this thread before, Captains have gone through simulator training some probably performed 100's of rejects during the course of their career while in the sweat box. Certainly during command training.
The above in mind or until that or a drastic change to SOP's, I will keep my sticky fingers on the thrust levers.