I want to add my 2 gil to this here cactpot.

I think the reason why the Scions didn't intervene was because, as Minfilia said earlier in the storyline, they wanted to remain as neutral as possible, as aiding any of the three nations could make things a little bit rough, politically. Those weren't her exact words, but that was what I got from her speech when the Scions were moving from Waking Sands to Mor Dhona. Had there been no politics involved, the Scions and the leaders probably would have jumped at the chance to help Raubahn. I think Teledji was pretty a pretty crafty villain, myself, if annoying. I won't lie, I had a smile on my face when Teledji started playing out his schemes. He was just like the devil.