Sheila, this isn't a false error. You are confusing the public display for Connection Finder with the tree as a whole. You may well never connect with one of those three people but you can still connect to the tree, Connectivity to the tree is calculated once per day so a new connection may not show up immediately, but please do not mark as false errors.
I should also add that the word "optimized" doesn't mean "restricted to" just that a search might work faster.