You don't get a minus for being on the ice for an empty net goal. It's only even strength that it counts for . Or if you get scored on the pp.
It is strange but googling this give conflicting result, why is this not clear.....
Looking here:
Player Season Totals - Natural Stat Trick
Draisaitl
Even Strenght (he is -1 at 5v5)
GF: 67
GA: 67
On the power play:
GF: 49
GA: 10
Penalty killing:
GF: +0
GA: -4
With empty net:
GF: 4
GA: 10
Against empty net:
GF: 6
GA: 2
So 10 goal for and 12 goal against in empty net situation's, it is not a big factor for him if they count.
Seem like a 0 player that get -10 because he is playing on the power play and not on the penalty killing, not because of empty nets (he seem to play a lot against a team with an empty net and it's almost balance out).
Being a -1 player at event strenght, with that many point and a 102.1 pdo is quite spectacular, but it is still much better than the Oilers when he is not on the ice (they are -11).