With the Dallas Mavericks winning over the dominant Milwaukee Bucks, their NBA Future Odds now changed to @27 from I think around @47 the last time I saw it less than a week ago. What a big leap or maybe I missed the other numbers from between @27 to @47.
If you really watched the game, you won't be able to insert that hypothesis why the Mavs won.
That spread was definitely meant to trap the gamblers. It's nothing to do with the Mavs winning that game. And take note that odds providers will not just provide a line without analyzations. Others already considered that Luka's absence is an easy win to Bucks but try to look at the Mavericks' other player stats. There is enough firepower even Luka was out. And I think Mavericks' recent performance without Luka against the Miami Heat plays a big role for that provided spread.
I will give an example: (prior to Bucks game)
-against Heat: (without Luka)
Porzingis@22
Hardaway Jr@28
Brunson@18
Kleber@17
Barea @12
-against Pistons (with Luka)
Porzingis@20
Curry@30
-against Kings (with Luka)
2 players @ 26 points
Hardaway Jr@27
... and many more. This just shows that even Luka is putting high numbers, his teammates are also stepping up making good numbers too.