Watch him play. The eye test backs the stats up.
We're all quick to overreact over big plays. Quick example: Goligoski turnovers in the playoffs, but we tend to miss the smaller mistakes.
As far as Goligoski, the stats are finally starting to back up what those of us who don't rely solely on advanced stats have always known -- he's a terrible defender and decent overall player whose advanced stats looked great because he was always on the ice with the Stars extremely skilled top line forwards.
Lindell's advanced stats might look awful in a small sample, but he has the skill set to be a good NHL defender. He doesn't need to go to the AHL to develop his skills. He needs to learn to apply his skills at the speed and intensity of the NHL game, which is something he cannot learn in the AHL, and for that reason, I suspect he will stay in the NHL and rotate in and out of the lineup.
Btw, Lindell might have the second best pure puck skills among the NHL defensemen, but in a game situation, he's currently far behind hamhuis and johns.
Patrik nemeth has been very solid out there. He and Johns are leagues ahead of oleksiak, Lindell, and jordie, thus far