Individual game plus-minuses don't really tell you much. For example Jalen had a 0+/- yesterday. Does that mean he was needed in the win, and the Rockets would have won with an average starting level replacement SG? Of course not. Jock Landale has the second highest +/- on the team over this hot streak, does that mean he deserves consideration for a max deal extension along with Halen? Of course not.
Amens impact is very under stated. These pesty players can really kill the other teams rhythms without having to dominate the ball. It's demoralizing when the other team plays great defense and force a miss only for Amen to just come out of nowhere and get a tip in. On defense he will guard your best player on the perimeter, poke at random ball for steals, and then come out of nowhere and block your layup. Just a true swiss army knife Now to be a true star Amen had a lot to work on, from ball handling to shooting to making layups on drives. But he's just so damn useful everywhere else that hes already winning us games.