Well there was 14 title fights this year by my count and that's with GSP being injured, Cruz being injured, Aldo being injured, Silva jumping weight classes, Jones only fighting twice when he likes fighting 3-4 times a year and getting injured, the flyweight division only having its first title fight this year and being delayed by McCall/Johnson, Condit not defending his interim belt, and Barao not defending his interim belt. If all this hadn't occurred, say GSP defended his belt twice like he normally does, Cruz defended his belt 2-3 times like he normally does, Aldo defended his belt three times like he was supposed to this year, Silva twice, Jones 3, flyweight let's say 2-3 times at the rate Demetrious fights, that makes 24 title fights in one year and that doesn't include Ronda defending her belt or Condit and Barao defending their titles as in that alternate reality they'd never get an interim belt as the champs were healthy. So say Ronda defends her belt twice in a year like she fought last year that makes 26 title fights I believe
You don't need every champ defending their belt twice in a year when others defend more frequently