Yes it is. Sylvanas was not always, as you put it, a cartoon villain. But since Cataclysm, those with a hardon for killing the character have been making noise non stop. Since then there's been a thread or two about killing her up at most times on most forums. Threads about killing her started by Allianceboiz are not that hard to find.
If you don't like Sylvanas go join Saurfang in his human potential quest.
They weren't surrendered, that's the whole point. The novellas make clear that every night elf has some degree of military experience and that they wouldn't stand meekly by when the Horde attempted occupation, something Saurfang and Sylvanas confirm in internal monologue regarding Malf's survival. Occupying the city would be costly and result in partisan warfare without achieving its main objective of drawing the Alliance into hasty and stupid action. Morally, the Burning is evil as fuck, tactically though, it actually holds up.
Last edited by Super Dickmann; 2018-11-11 at 09:10 AM.
Dickmann's Law: As a discussion on the Lore forums becomes longer, the probability of the topic derailing to become about Sylvanas approaches 1.
Tinkers will be the next Class confirmed.