I don't mind the Xg stat but it can be a bit misleading. In recent weeks (Ipswich, City , AZ, Bournemouth) we are giving up a lot of quality chances very early in the games. We may create our own chances later on which even out the Xg but that doesn't change the fact that we could have been 3 down if not for profligate finishing and of course big Vic!
Late goals when the game is dead (Chelsea at Home, Everton away, Villa in the cup) can make batterings look like close games.
Bournemouth have destroyed us twice without the result to show it. Palace and Galatasaray away could also have been very ugly.
So that's why some, myself included have been regularly alarmed by our performances and the chances we cough up even if the results don't ultimately show it.