I love how people pretend that analytics are just a made up thing that have no connection to actual success in hockey. As opposed to a very strong indicator that the some very important trends are not obvious from focusing on visable stuff.
When Maatta f***s up it's extremely visable because his foot speed isn't great and he occasionally makes bad decisions. When he succeeds, it's not very visable because he's not a flashy player. But it's fundamentally true that we are a better team with him on the ice. That's not numbers just pulled wildly from the ether. We control play, we transition the puck up the ice - everything central to Penguins hockey except raw foot speed is better with him on the ice.
But yeah let's just send him off for Edler or package him for Brodin, who actively has a negative effect on how his team plays when he's on the ice. This reminds me of how people used to view Sutter around the league - he was just assumed to be brilliant defensively, and he's so fast, and he's got a good shot. No, he sucked and the other team controlled the play with him on the ice. But reputations are reputations and Sutter's got a big contract as a result.