Bedfordspurs
Chris Waddle
It’s better than a lot of ways of judging itTrue. With players like Son and Kane and other great finishers you'd simply expect them to outperform their xG - but some would say they are anomalies. The whole xG thing definitely isn't perfect, but I find it often to be a decent indication for how a team is performing over time.
But as you say it doesn’t factor in even if it’s a striker or a defender taking the shot. That’s flawed to me