Revealing mistake: When using a hook on your hand, it will often times bend in similar ways a normal hand would. Especially when picking up a pet and petting them, the hook bends and twist like a flesh finger despite being a metal or bone hook.
Factual error: Black powder barrels were added to the game and are stronger and more powerful than even the big stronghold barrels. The other barrels use white, smokeless powder. Black powder is actually much less powerful and efficient than smokeless powder, so the black barrels being stronger than the stronghold barrels or even regular TNT kegs does not make sense.