Roster, what's the point? CSR?!?

Well some might not notice, but after or when you search for a game in MM you can press X to get to a window called Roster.

I see no point with it. All your friends are lvl 1 (and wear Recruit armour with black-grey color and blue Recruit vision), even if they are online.
The only ones who show correctly are the friends/enemys you play with.
And you can already see them before and after the game. There levels and armours without using Roster.

So what’s the point with Roster?
Will they use that for CSR or what?!?