Skoll Shorties

Not to mention historically Rexxar doesn't care enough about loyalty to abandon his honor and beliefs. Hence him leaving thr first horde and wandering the wilderness for years.

To me it makes sense that Rexxar is back and is helping the Horde when it needs him most. The problem is he just wasn't present for key events that he should've been in. For someone like me who's waited 7 years for Rexxar to come back and do something this is a celebration.

Rexxar should come back to defend the Horde against corruption. Not being a maggot writhing in it. Dude has connections to enough neutrals, by his own admission to us, that he would know these details. It is absolutely against his character to come back and enable corruption

Every member of the Horde has a reason for why they fight the Alliance. When you do the campaign Rexxar doesn't use the blight or things he wouldn't usually. Lots of the Horde are not for Sylvanas and her tactics infact Rexxar is unsettled by Zelling's choice to be undead.

So in a way Rexxar is upholding the ways of the Horde in the campaign. If he was ordering soldiers left and right to use mana bombs or the blight then yes he would be as you say, "For Sylvanas' corruption." But Rexxar & several of the Horde are infact not for Sylvanas' Horde.

Rexxar just stands by as said blight is used. Compliance is but a step above doing it yourself. The blood of Alliance and Horde are just as much on his hands as hers by enabling her to even make it this far. His wolf is dead because of him.