I don't think anyone will go on record without knowing who you are, but I think most distance coaches are happy with the race distances as they are. The men's NCAA depth is really strong, and the 10k distance allows for the field to spread out and get a feel for who the strongest and fittest athletes are. It does not bother me that 800m runners can not contribute and milers are usually at the back of their respective teams.
Fielding women's teams is tough, and injury rates are already higher. There is a much bigger difference between front and mid pack women's times than there is on the men's side and the depth of the NCAA and most programs is not nearly as strong for the women as it is the men. I think it best to keep things at 5 and 6k unless we want to see women running 35 min 8ks and 46 minute 10ks.
Personally, if there had to be standardization at championship meets I would probably opt to lengthen women's races as opposed to shortening the men.