You enjoy it. I think it's utter garbage. Other opinions are available.xG (and the resulting XPoints) is a really good underlying stat to determine how a team/player is performing. This is predominantly what bookies use to price markets initially).
There are outliers, but usually, the X stats are more accurate than things like possession, number of shots, passes etc in determining how well a team has played.
This is a good link to see the stats vs the reality of the table.