There are really strong arguments being made for both sides of this issue. One thing I haven't seen explicitly mentioned is the perspective from which catchweights are analyzed. These seem to be some of the major themes in the debate.

From the point of view that boxing is a sport: catchweights can taint the purity of a contest and also have negative repercussions on the weight class system as a whole.

From the point of view that boxing is an entertainment industry: catchweights provide a means for marquee fighters to compete in superbouts that catch the public eye.

Considering that boxing has taken a bit of a hit in mainstream coverage, these "superbouts" could revitalize the sport's popularity. So it's a question of maintaining the purity of the sport versus making megafights under less than perfect conditions.

Tough call...