How many people actually have 7.1 setups?
Doesn't matter. Outlaw is going to have to compete in the marketplace against 9.2 and 11.2 gear. In this day and age, limiting a pre-pro to 7.1 is a quick way to be taken off the consideration list by potential customers.
I thought the amount of 7.1 content was limited, let alone 9.x?
Consumer 7.1 pre-pros were selling 24 years ago; discrete 7.1 content came out only 4 years ago. One has no bearing on the other.