"do you like dotted lines?" is almost a silly question because the real world and society in general is composed of them. Clean demarcation of communication and responsibility is an artifact, since our ancestors started working in tribes, subjective dotted lines were the norm. Rigidly structered systems tend to be brittle, they cannot respond as well to varying situations.

Fear of dotted lines is in part fear of responsibility (beacause rigid decision structures enable the precise location of blame), of making judgement calls on the fly that might not work out.