The wavvy cutout at the top is like some of the other brands that I have tried that were specifically made for the Iphone 7. Normally it would be a small U shape for the 6.
I think you either have a revised better version or the version that Belkin plans to sell on their site. Yours only has a small space around the home button and it seems the Apple variety others are posting for the 7 has the huge cutout for the home button.
Last year I bought a Tech 21 from Apple and then one from T-mobile. The exact packaging, but the Apple version had the huge home button cutout and the T-mobile one was normal sized.
The difference may be the machine vs regular packaging too.
I hope I get the one you have as long as it doesn't halo. My order should be here tomorrow.