Is this a good thing or a bad thing?
World News
We'll see but geopolitically, Serbia was doing better than the average easter europe country. If they suddenly turn pro-europe i'll assume this was a bad thing.
The short context as I remember it is that the neoliberal government of Serbia, led by the pro-EU Serbian Progressive Party, had overseen the reconstruction of an old train station, but did such a shit job at this that a part of the building actually collapsed and killed 15 people back in November. When the Serbian government denied any responsibility for this tragedy, people got mad and called their bluff, and that's how this whole wave of protests in Serbia got started.
Whether Vučević resigning specifically is a good thing, remains to be seen; but Vučević in any case is put simply the bad guy, and the protestors are the good guys. This being said it is sort of funny to say "is this a good thing or a bad thing?" as if the news actually should just put "bad guy" and "good guy" in parentheses after every proper noun.
They are trying to stop protests and this is, probably, a trap. We'll see in coming days.