This information is very important because it shows zookeepers everywhere that successful coalitions can be formed in captivity between both siblings and non-siblings. One main reason is that they don't think it's that important. It is important, though, especially if captive cheetahs are one day to be released into the wild. Field studies of wild cheetahs have shown that males living in coalitions have a much better chance for survival. They have fewer diseases than singleton males and are more likely to be territorial.
Territoriality is an advantage since it is largely the territorial males which end up mating.