It doesn't matter what the classification of the laptop is...Apple said a while back that the ODD was going to go...and they were the first to make the big move of excluding it from a machine in the MacBook Air.
Just like they were the first to get rid of the floppy disc drive in the iMac. Everyone went crazy...
Apple innovates.
It doesn't matter if Razer made a 'pro' laptop without the ODD...they weren't the first to do it. Apple was with the Air and Apple basically laid the road map for everyone else.
Apple was by no means the first to exclude the ODD from a laptop. Ultraportables had been around for years before apple released the Air without ODD's.