After doing some thinking on the lore of Telara and the blood storm, I came up with a few interesting theories...
From Maelforge, he wanted to pick a fight with Telara's god of war, Thedeor, based on what he had heard.
Next, Telara was constructed by Bahralt at a nexus point of the planes. For the most part, the gods were autonomous, and only later became the vigil (perhaps an alliance of necessity?).
Lastly, when an ascended dies, their tombstone reads planar corpse.
So... My thoughts are this:
-Telara and its inhabitants were designed to be a trap for the bloodstorm. Likely, the Vigil knew they were coming based on Maelforge having heard of Thedeor, so one would assume it was vice-versa.
-Telara, being at a nexus to the planes, gives it's inhabitants natural strengths against all the planar entities (i.e.; think the buff/debuff from creatures being in the vicinity of rifts; deal 5% more X damage, receive 5% more damage from Y)
-Based the planar corpse message from a fallen ascended's tombstone, one can assume that we are now infused with even more planar powers than when we were mortal.
-Before ascension, the gods of the bloodstorm could only be imprisoned, not vanquished. The ascended have the power to vanquish them to their respective planes.
Going forward, my thoughts are this: Since Telara was designed to be a last line of defense and ultimately a trap, this was an all-in move on behalf of the Vigil. After ascension, I believe there will be a massive offensive to cleanse (purge, perhaps?) the corrupted planes on their own turf to end the threat of the bloodstorm once and for all.
Or, maybe I'm way off base.