I am flattered by the comparison with Justin Beiber, Patrick.
It is difficult to remove any ambiguity from an editorial because one has to keep it short. 'Hotheads' are people who preach, with apparent passion, against what they perceive as the opposing position rather than to rationally explain the merits of their own. The 'hotheads' of distributed database architectures are the ones that declaim, in emotional terms, that there is something inherently wrong in a 'monolithic RDBMS'. There people are generally marketing people. I've used, or experienced, a wide range of architectures, and have found good uses for all of them, but that is quite different from becoming convinced by the delusion that a particular architectural style is a universal panacea, and that everything else is rubbish.