naafari tanked tower since wave was blocked, then xin missed his auto knockup because he must have been trolling with available minions to stack, then he dashed back to trade 1x1 if xin really did want to start the dive. naafari got tilted or something and ran it rest of game
I guarantee he knows that mechanic and can execute it better than you. no point in using it if there's no reason, if you don't want to ult immediately after W then it's stupid just to do it for style points