cuz you can get it from Yami yugi already, unlike Grunika which was exclusive to the 2nd event plus Yami Mariks appearnce. Atlesat they could've given us a card which is unobtainable
the dragon in the picture can clearly move, so i think its fair to say that it could potentially be running, making it a perfect addition to duel-a-thon rewards. in fact, i think it may be possible that konami messed up and accidentally put red eyes insight in as a super joey reward, when it was intended to be limited at 1 from the duel-a-thon all along.
I admit I slept under a rock when mentioning Grunika cuz I just realize it was a different event. But my I still stand by my word. There's other options Konami could've used instead of a LD drop card.