It's interesting because the Oilers issue right now is very much "the percentages" but as we saw with the 22-23 Flames...that doesn't always sort itself out in season.
All Situations:
xGF: 54.8% - 3rd
Shooting %: 7.94% - 32nd
Save Percentage: .875 - 31st
So they are getting PDO'd to hell right now but there are two potential reasons for that.
Goaltending: Their goalies aren't very good and they are doing that 22-23 Flames thing where they don't give up much volume, or even a high volume of high danger chances, but the chances they do give up are just complete defensive breakdowns, which makes the goalies look even worse.
Shooting:
Draisaitl is shooting at an absord clip (26.53%) and McDavid isn't that fair below his career average (12.28%), combined those two have 20 goals on 106 shots (18.9%) so it's not like they are shooting below expected.
But the rest of that forward group is struggling:
Podkolzin: 26 shots, 0 goals
RNH: 38 shots, 1 goal
Arvidsson: 38 shots, 2 goals
Skinner: 53 shots, 3 goals
Hyman: 49 shots, 3 goals
Henrique: 30 shots, 2 goals
But for those guys outside of Podkolzin they are all 31 or older - and that's on the tail end of the shooting percentage decline you generally see in the NHL.
Now they are still far below that too (a combined 4.7% shooting percentage is abysmal under any circumstances) but who knows how much upside their is with those aging veterans.