zahavasdad,
While I agree that it seems that the Kol Koreh may seem not helpful, it seems to me that there must be a reason that the Rabbanim came out with it. I trust that they know what they are doing. I assume that there was an incident (or more than one) where something went afoul which forces the Rabbanim to voice their opinion. The following is an example:
I have a friend that went to YCT, one of the early ones there. About 10 years ago, he told me that the National Council of Young Israel was really upset that a YCT graduate was hired by a YI congregation. The NCYI leadership then said that all prospective rabbis have to be approved by the NCYI. If it wasn’t for my friend telling me the inside scoop, I might have wondered why the NCYI was being so micromanaging.