As mentioned before, it's a hall of fame, not a hall of achievements. Chacon wasn't just a crowd pleaser, though. Limon, Boza Edwards, Olivares, Danny Lopez... These guys were good. Gatti's resume is inferior, but if a guy embodies the concept of a hall of fame, it's him. He was arguably the face of boxing for a time. I'd put these 2 above the other 3. Norton gets a pass because of the era he fought in, I guess. He was as close as it gets to take Holmes's 0 and win a trilogy against Ali. One could argue he couldn't take a punch, but he wasn't lucky either. Qawi had an exciting style, that being said the Saad Muhammad he beat was pretty much a corpse, and so was Leon. The rest, like most Norton's famous showings, are losses. I'd keep him in because he also pushed dominant Evander and Spinks versions pretty far. Cuevas is a question mark. That's something appealing in his story, though. A big upset against Espada and 11 straight title defenses, and a crowd pleasing style...
Hell, I guess the year they got inducted is also a factor. But as far as the criteria are subjective, it's kind of pointless to argue against an induction.