Why (exactly) Connor McDavid needs to shoot more on the Edmonton Oilers power play

Oilers power play is now worse than Decade of Darkness levels
If there is one big ugly issue on the Edmonton Oilers’ power play, it is the team’s inability to manufacture one-timer shots.
One-timer shots have killed the Oilers when they’ve been penalty killing this year, as pucks have gone cross-crease or cross-seam against the Oilers ineffective penalty kill to set up that most deadly of opposition scoring chance shots, the dreaded one-timer.
One-timers have absolutely hammere