I just happen to see that people refute some suggestions with the reason: 'that seems too hard to implement.' Say what you like, I've seen it enough. And I need people to understand that mojang's JOB is to code. So, one, they do this for a living, thus they should feel compelled to do it if it's something that makes the game more fun to play, as making the game more fun is their job. Secondly, it must've been hard to initially code block breaking and placing when it was just notch alone, right? Well, that didn't stop him, and look how well it turned out! So just don't say that coding is a problem in making a game.

TL;DR: the difficulty of the thing in question's ability to be coded isn't a valid reason not to code it.

EDIT: it was better explained in another post.