I wonder why Subaru doesn't offer the 5 door premium with a no roof rack option. No harm no foul in giving people the option to either have or delete it as they see fit. I inquired at my local dealer if it was possible to order a premium with no roof rack and they said they would make some calls.
Looks like no on the premium for without racks, looks like its part of what makes it a "premium"
I can tell you from my experience at a different brand dealer, that people are pissed their car DIDN'T come with a roof rack and want to add it. I see your point though and can appreciate it.
From the Subaru web page..
Roof Racking
Every Impreza model comes with roof racking capability, including standard roof rails on Premium[/B] and Limited 5-door models and standard roof rack brackets on the sedan. So, whether your trip includes bikes, kayaks, or cargo, it’s ready when you are.