Despite their record the Chargers have been competitive with all of their losses by 3 pts or less.
Last year both games vs KC were 3 pt losses so they play them close.

This is a team that plays well enough to win, but often ends up losing at the end against top teams, yet they still can cover, just as they did in both games last season. The Chargers have shown the ability to contend with top teams, even when they lose the game late, making this matchup against the Chiefs an ideal opportunity to take the Chargers at +5.5.
Justin Herbert should play well and RB Austin Ekeler should be better after a game under his belt. LA is a perfect 5-0 ATS the last five times they’ve been a dog of 3.5 to 9.5 points. They’re still 10-4 ATS L14 in the dog role (with six outright upsets) despite the loss Monday. QB Justin Herbert is 10-1 ATS in his career as a dog of 3+ points including 7-0 when getting more than 5 points.

Take the pts with the LA Chargers.