AC Mack
Striker
Aye that’s another point. If a striker has his penalty saved and the keeper parries it straight to his feet, but he hits it wide, then those two chances would add up to an Xg of more than 1, but you can only score one goal from the situation, he can’t score the pen and the rebound.
I don't think it adds up to more than 1 - iirc they average out the two chances to create an overall xG for that particular move. But it's still skewed.