It's both a problem that Lehner can't stop a shot and that we're not scoring. I don't understand why it needs to be a pissing match over which is more to blame. Anyone taking the position of "why worry about XXX when we can't YYY" or "let's fix XXX before we worry about YYY" is doing it wrong. XXX and YYY both need fixed and it's not a mutually exclusive option. Let's work on both, yeah?
To me, I'm more concerned about a goalie that can't stop a puck. He's one guy, and if he's not the right guy there's really not anything you can do about it. There's 20 skaters that can shoot in the shootout though, and if one can't score there's others to try. If NONE of them can score, then it's more likely its a systemic problem than a problem with the players specifically. It's still concerning and needs fixed but it seems something more correctable than a goalie that can't stop a shot. Maybe they need to prepare for shootouts better, have better scouting reports on opposing goaltender tendencies, practice more/better/at all. If they're practicing shootouts vs. lehner they probably feel pretty good about their moves in practice lol
Also, let's maybe not use a shootout against the best goaltender in the game as the measure of whether we still have a problem scoring in the shootout.