you think if the distance was 8 or 10 k it would be less exciting and less competitive because there would be fewer teams and athletes having an impact? i have no idea why on earth you'd think that... there wouldn't be fewer they just wouldn't be the exact same set of athletes that are having an impact now... some that couldn't handle the extra distance would be removed and be replaced by some that don't have much impact at 6k but do at 10k...
what you really mean is most coaches will be against this until they actually decide to let XC have their own set of scholarships. what we have now is a bunch of coaches trying to use their track scholarships on people that can run both the shorter track distances while also being to handle the XC distance...because no one can afford to use all of the track scholarships on a bunch of10k specialists for XC...
it's the same reason the college XC courses are all basically track meets on grass now... it's sad to think the high school kids run harder courses than college runners... but that's another topic for another time.
my thought is the girls should absolutely be running 8k
and to the person who said it would take to long... take to long for what? the extra 10 minutes would ruin it for you? trust me the only people who watch these races are family members and people who are into distance running... neither of those groups are going to decide they can't watch because the girls are running an extra mile or two..