Classification doesn't mean anything here. Theory is one thing, practice is another one.Currently, those roads do not have any function, so tagging them as "primary" or "trunk" makes no sense. Such approach "strictly according to the theorical classification" leads to absurd road tagging, like the Joniškis bypass being classified lower than the "A" road leading through the city center.
In Vilnius, we have several (good) examples of "A" and regional roads classified lower: A3/A15/101 around the Vilnius Old Town, for instance (classified as "secondary). A3/A15 close to the train station (classified as "primary"). Same thing goes for Kaunas, etc. Why not extending such good road tagging practices to the whole country?

