I'm saying this as a big gana fan but
It's not necessarily that he's passing is inaccurate in terms of giving the ball away. For me his passing isn't quite spot on.
Quite often a player will have check his run because ganas pass was slightly behind. Also the passes aren't crisp enough. I think it's a reason we all jizzed at gomes first few games. His passing was quick and crisp and super accurate.
You see the top 3 at the moment and every pass is spot on. Bang exactly where they want it to be. And super fast. Gana is not a great passer of the ball lads. Despite What the stats say. He's not the only one btw. And he makes up for it woth his other attributes. But the top midfielders for the top sides are several brackets above gana for passing.
And because they are they keep the ball better and don't necessarily need someone with ganas qualities defensively.