She's his sister, what more would expect?
Family members are usually the most biased you'll ever find when it comes to how good a player is or isn't.
This is a reach, I don't think she reflects how Rosier feels, y'all act like you & your brothers & sisters are all the exact same people that agree on everything knowing **** well that ain't remotely true.
Even if Malik did feel that way, so the fck what... Richt made the decision not the fans. Obviously, since Rosier is still here he's been doing his part relaying the plays & trying to be helpful, that's really all he can do at this point.
Barring injury, Rosier won't be playing much if any at all the rest of the season, so he has the responsibility of being a veteran leader helping Perry as much as possible & just keeping himself prepared with mental reps just in case Perry does get hurt.