The Rockets are 3-1 since play resumed. They are playing for playoff seeding and aren't going to give up a game to the Kings, who aren't playing defense and haven't looked good.
The Kings realistically know their playoff hopes are gone since they've gone 1-4 in the bubble. 
The Kings gave up 140 points in a loss to the Pelicans this past Thursday and then lost to the short-handed Nets on Friday. This is their third game in four days. They are dazed and demoralized. 
Houston has too much firepower and incentive for the Kings to stay close.