[Yuna is rather unaware of this problem. She's too busy on the other side, cleansing what she can with water and freezing some of the metal to make it brittle. Ifrit just keeps working, smothering more of the fire with earth. It's not like she really can do a whole lot more with the tools she's got.
Sorry this is lame, she's just...way on the other side and doesn't know how any of this works
Hopefully he can, though.]