I don't dislike the idea of scoring for a close round but to my opinion, the problem doesn't lay there especially, some changes that should be make include:

1) You should never have more than one judge from the same nationality as any of the boxers (except if both of the same nationality)

2) There should be an official camera system between rounds or something like that to clarify officially if there is a fall, a foul or something so those playing too dirty couldn't get away with it.

3) The referee in charge should have an evaluation after each fight and if he screws up things more than X in a specific laps of time, he should be out for a period of time. Of course, there would be a criteria grid for it and by screwing things up, I do not mean on a close call but something major.

4) THere should be ultimately a way to overturn a decision if it is wayyy too shabby (example Lucas-Beyer in Germany, fight I did assist); Once again, it shouldn't apply to close call but for matches where the alphabetic order apologises and order a rematch because the decision didn't make sense.