When you are in a tight game, against one of the best money goalies in the league, you can't blink. This isn't about save % in this particular game. It's about making all the saves you need to make, and maybe a couple you shouldn't be expected to make. Regardless of your team making some mistakes (the Penguins made plenty of them, probably more than us, given the disparity in shots on net, and the extra quality chances we had by our stars), letting in a weak goal is a killer, and can bring an underperforming team (the Penguins in this case) back into the fray, and also has the flipside of deflating the other team. Right after that goal went in, the Pens ramped things up. Until that time, Koski was making the saves he needed to make, and the Oilers had control of the game. But with this team being so fragile, and without any secondary scoring, their goalies have to be airtight in games like this one. I didn't think Koski had to make any 10 bell saves in the game, to be honest. Nearly all were routine, with a few good ones. But as mentioned, the Oilers goalies need to be the best goalie on the ice every night, regardless of shots or save %. Anything less will likely mean a loss or a bad loss.