I emailed the place, notifying of the mistake. Not sure if he was completely sincere with me or whether it was just an ad hoc explanation to justify this mistake, but I was told in response that it is some 'principled' decision they made with the map, then he started going on about some pseudo-history of the supposedly Finnic Wends that inhabited northern Estonia, so I chose to desist. Oh well, the place I ordered it from is called hermeetikko.com
Well, the Norwegians did spread north quite early on, farther north than the Swedes.The mapmaker could have been a little more ambitious with regard to Lapp claims on Norwegian soil, though...
Viro is derived from one of the historical counties of Estonia, Virumaa.By the way, it does indicate nicely how the Estonians own autoethnonym was inherited off the Balts, who got it off the Germanics in the first place... Is your 'Viro' word any older, or is that yet another IE term (Latin virus, English were, Irish fear, Welsh gwyr - 'man' etc.)?
Etymology according to wikipedia.The name Viru probably has Finnic roots (e.g., Finnish language vireä means "vivacious", "lively"). According to an alternative hypothesis the word Viru may have originated from Baltic languages with the meaning 'man' (cf. English word virile). Earliest mention of the name is probably on Ängby Rune Stone in Uppland, Sweden which has inscription in memory of a Viking Björn who was killed in Virland (uirlant). In Finnish language, Estonia is still called Viro after Vironians. 'Viro' is also present in several Finnish place names like Virolahti, Virojoki and last names (Vironen, Virolainen). In Estonian, the word virulased is used for inhabitants of modern Virumaa counties or speakers of North Eastern Estonian dialects.