And here I thought the Aedra couldn't do squat except need me to rescue them (Morrowind). So where did Kyne get the power to insert an alien-cyborg-future man + bull companion into a kapla to go kill the Ayleids? Why does Kyne hate the Ayleids, but not the other elvish races? Why don't the Aedra do more stuff like this more often?
Pelinal is an avatar of Shor/Akatosh, remember? Kyne's spouse(s). He was another divines catspaw, just somewhat of an offshore asset, perhaps. Morihaus Breath-of-Kyne was a minor ada already known to Alessia as a champion of humans.
It was an odd arrangement, as the Aedra were picking sides in a conflict between their worshipers, essentially. In my opinion, the Ayleids were decadent and blasphemous, because they were (through Daedric traficking and dracochrysalis) slowly abandoning proper Aldmeri Anuic philosophy. Umaril also wielded the power of White-Gold Tower, which boiled down to a Daeda Lord holding the reins of the mortal world and exercising influence over the et ada trapped in it.
The Divines abandoned the Ayleids just as they abandoned the Cyrodils after the War of Righteousness and the death of the Potentates. They got the Dragonpact out of the bargain, a covenant with the new rulers of White-Gold.
And all the Aedra did was manifest some of their own aspects, after all.