The fact of the matter is, this car came to market a tad late. The 5th gen Mustang already had five years under its belt as opposed to the 3 years it had in the 60's. Already the new Mustang is coming out and it's apparently taking a different direction in styling.
If the Camaro is to compete with the Mustang, it has to have its own unique styling but cater to the same styling trends that the Mustang and all other cars in its class are adapting to.
It's a shame, because I loved the retro movement but it's on its way out.