I'll throw in my 2 cents as an outsider who hasn't yet shot a high power match. I agree with keeping CMP matches as they are. I'd love to some day dedicate the time and effort to getting a DR badge, and wouldn't want optics to cheapen it.
There is, however, a point to be made that there may come a time when optics are necessary for the matches to survive. I primarily shoot action pistol and 3 gun matches. 90%+ of the competitors in a 3 gun match use an optic on the rifle. Do I understand correctly above that there's a class for optics in the NRA matches? If so, I'll probably try to come out and shoot a match or two with my 3 gun rifle. If I enjoy it, I'll probably build a service rifle eventually to shoot CMP matches.