Of course not. The data set, however, say you glance at your speedometer and see you are going 70 in a 30 mph zone, helps you decide among all these previously equal probabilities. If I'm right, Sounds like a modification of phenetics. I'll go with that. Maximum parsimony is a fine clustering idea, because of its phylogenetic component it is theoretically better for classification than other clustering methods.
Longer trees are far less probable.
I'd just like to have some confidence about what they mean. Bremer support refers to the first sets of trees of a particular number of steps longer than the shortest tree.