People don't understand that they have to allocate time just in case most the fights go to decision.
I'm reminded of when people were complaining about Cain vs. JDS being the only fight on a 1 hour fox card, despite that there was no room to add another even if they wanted to.
06 MIN - UFC INTRO VIDEO, WELCOME THE FANS, PLAY VIDEO PACKAGE
06 MIN - ENTRANCES AND BRUCE BUFFER
25 MIN - THE FIGHT
04 MIN - BREAK BETWEEN ROUNDS
05 MIN -ALOCATED TIME FOR EYE POKES AND SHOTS BELOW THE BELT
03 MIN - JUDGES TALLY THE SCORE
06 MIN - ANNOUNCE THE WINNER + POST FIGHT INTERVIEWS
05 MIN - WRAP UP SHOW
= 60 MINUTES for JDS vs. CAIN
Explaining this is usually worthless, because at the time everyone just complained that the fight only went 1 minute. They were saying that the UFC should have KNOWN the fight wouldn't go all 25, yet both rematches ended up in the 5th round, one of which needing the judges score cards.