I haven't been following this one, but I have a couple thought s on Malignaggi...
He is the kind of fighter I most dislike (well...right behind ex-Olympians); silly haircuts, skips around the ring, acts like an ass and everybody goes on about his "charisma" and "boxing ability." Personally I find that smack-talking and odd costumes and long ring walks detract from the dignity of my favorite thing in the world- professional prize-fighting, though I enjoy all those things in pro wrestling. The belief that a "great boxer" skips around the ring flicking and slapping punches while taunting an opponent is a part of the "Ali-itis" that has infected boxing for far too long. As a result we tend to laud guys that can't do much in the ring as "great".
I felt this way about Pazienza throughout his career, though ultimately I had to respect his toughness and willingness to do what he called fighting. Same with Joey Gamache, who won my respect the night I saw him fight Chavez. Camacho earned my respect when Chavez beat him up, too. I have no interest in watching Malignaggi at all, so I'll probably never come to think anything but ill of him and his way of boxing.
It is very probable that he does have hand troubles. Gene Tunney did, and it made him become more of a boxer. Ali did, too, though I doubt it made a difference in his style. You tend to hurt your hands, especially the outside knuckles, when you flick and slap punches with your hands open and your wrists loose.