First off, you can't deny Dion has amazing talent, and also don't forget he's just in his 2nd year. Second, him and Kyrie have been playing really well together lately, maybe they are starting to figure out how to play off each other? Also, yes Kyrie was going crazy for Dion.. Someone said at 1:27 in the video, but also at the very end after Dion makes his last 3 pointer, Kyrie goes crazy again. Kyrie posted a picture of him and Dion earlier as well, Dion was dancing after Kyrie's 3 against Detroit, then they chest bumped, they wore the same shoes to media day earlier... Maybe they are really starting to click.
Also, isn't Dion the guy no one wanted in the draft? I find that hilarious, being Dion deserved the MVP of the whole game.