The score says how it ended. xG says how it should have ended: it is the sum of the chances each shot was worth, not an opinion about the game.
A draw, but Málaga created more (1.73 xG against 1.19) — points dropped.
Málaga: −2.4 for the season (20 in the table). Levante: −1.4 (17). The gap between points and xPTS is built from matches like this one.