Yeah, it's really ironic. The Cetinjani like to brag about how taller they are compared to Serbians (Srbijanci), while in reality they are no different from them :D
And it is really interesting how the average height in Old Herzegovina, a term the neo-Docleans from Cetinje claim was made up by Serbian nationalists to divide Montenegro, is no different than it is in towns from 'proper' Herzegovina, like Trebinje.