A mix of both MU and his general lack of good moves.
Oh okay, well in that way, you kind of have to get a lot more comfortable with your spacing. As vague as that sounds, if you can't make whatever attempts your try for anything reliably safe, you're gonna have a hard time period. With any character. You have to get better with baiting because of his moves typically having long or slow start up. I got pretty close to takin a game off Hero of Time in tourney with D3. So, it's possible. He's a much better PM player than I am, so it shows that if you are well founded in all of your understanding of what your character can do, and can manage your moves well, you can either keep it close or win out against a larger pool of "BS" than you think. I've never played a link in tourney, so I was kinda playin it by ear. It's possible, but you have to be dedicated enough to stick it out. Your punish game needs to be on point too. Because, obviously, D3 doesn't get a lot of openings if you are playing someone that knows what they are doing.