Her reasoning was:
We need to shut down an Alliance port. But we can't beat the Alliance in a straight-up fight. ! We will do a sneak attack against Teldrassil ! ? But won't the Alliance retaliate and beat our asses ? ! We will hold the civilians hostage ! ? But won't they resist our occupation ? ! We will break their spirit by killing Malfurion ! ? When has a faction in Warcraft ever been demoralized by killing their leader ? ! ... ! Okay, so that was dumb, because of points 7 and 8. But fine.
Now, the plan has changed.
? So we can't break their spirit. ?
! Let's burn their tree down. And all the hostages !
? But won't the Alliance retaliate, and beat our asses ?
! I SAID BURN IT !