XG is the biggest pile of wank as a metric for measuring performance.
Every single news report reckons Southampton won the match easily, as I do myself. This is from the BBC:
The final scoreline flattered Villa, who only sporadically showed the form that earned them a full 12 points from 12 at the start of the campaign.
This is from the sun:
In truth they won this one by a country mile as they underlined why they are the Premier League’s away experts as they clocked up their NINTH win on the road since their 3-1 win here four days before Christmas.
Every single news report says the same.
xG measures the quality of chances. If you're using it to measure performance then it's no ones fault but your own for being too stupid to understand it.
If you're browsing the Sun to find your football opinions you can keep them. I watched the match start to finish and am happy with my opinion of what I saw.