Yeah, the reason was because they thought that it was made in some program that finds an image and makes pixel art out of it but it was actually completely handmade.
Skydoesminecraft is a bad person. Well, the fans are a lot worse. But anyway, gold is GOLD, not butter! And anyway, JagaimoPotato is right, but still, gold is much harder than butter. Also, butter is not spelled B-U-D-D-E-R, it is spelled B-U-T-T-E-R.