It was a buggy crashy mess. Also there wasn't much to do because there was no adversity. Sure there is also no adversity in creative mode MC but don't underestimate how important the first experience you get of having to mine your resources is in slowly introducing the game loop. Creator you just make a few cars, drive them to nowhere, spawn an army of NPCs, watch them fight, that's about it. The Knight's Kingdom version might have been better in that regard.