Note that the student movement formed an incredibly unique decentralized political apparatus OUTSIDE of the formal institutions. They are exemplary and I am excited to see how successful they are going forward. Dismantling the Vucic corporatist structure won't be easy but I think this movement is genuinely capable of it.
They did not vote blue no matter who, they built their own political bloc from fucking scratch.
Edit: I'd also like to be abundantly clear that the point communists make when they say voting doesn't work is that voting won't dismantle capitalism. These students and the political apparatus they built can change the leadership for the better but it isn't going to smash capitalism and replace it with a society free from oppression.