I Just "Won" the Endgame Crisis, Without Ever Beating the Endgame Crisis

Playing as Nakai, I had the Chorfs endgame crisis trigger. I had some of my marauding hordes of kroxigar bonk sticks close enough to get there quickly, so I had them mosey on over. I fought one single battle against the Chorfs, which I lost. One stack of kroxigar and a few other random units vs two stacks of Chorfs.

The battle didn't go terribly. I lost, but I inflicted heavy enough casualties that they didn't pursue when I withdrew. I took a few turns to rebuild the damaged stack and move a second one into the area. Then, I marched back in. I found that in the few turns I had been gone, Kholek had beat the shit out of the endgame faction and then marched away. It took a single fight against his forces in one of the unguarded settlements he had taken (he had razed the other two that my objectives said to "Occupy or Raze") to officially "win" the campaign victory.

I suppose I weakened them enough for Kholek to have an easy time of it, and I completely get that the crisis should be winnable for diplomatic factions through the actions of allies (such as N'Kari throwing vassals at the problem). But to win the whole thing after a single lost battle when an AI that I'm not aligned with does all of the hard work for me seems a bit ridiculous. They never showed up on any of the other continents where their drills were supposedly allowing them to invade. I have had games where the endgame crisis worked well. I had one game where Settra use the Tomb Kings crisis to rampage and take over a pretty big area before I marched over to him. It's just that my latest game was hilariously broken.