All plausible positions, Enkidoh. The lack of clarity is the reason I didn't go into it much on Loremonger.

Personally, I believe that Sigurdh and Oona were indeed trying to lure the Garleans into wakening the greenwrath, but things didn't work out as well as they would have liked, probably because they didn't take the Garleans seriously enough. The circle of knowing certainly understands that to prevail, the city-states would need to throw absolutely everything they have at the situation and that the continuation of normal life for most of the populace is a pipe dream.

The first time we see Kan-E-Senna, it is in an echo belonging to Raya-O-Senna. In it, she is calming the wood following the killing of a number of the "great ones" - senior elementals that administer the law of the wood and dominate their will. To the seedseers, this is serious business, because they are not easily felled, at least not by simple mundane means. Something sinister is at play. It is what convinces her to return to the city to oversee a war effort, because it has become clear that they really need to pull out all stops against what is going on.