Joel and Finn were well aware of what happened between Iris and Sofia, everyone from the Howling Wolf pack knew about this.
That was why, Finn told Sofia to hide behind a tree, before joined the fight earlier with Joel. The only enemy around them were the fifteen warriors from Diandem pack, based on that Finn and Joel felt find to leave Sofia and the baby for a while, after all the target was not them.
If they were not being stopped by Grory and Argean, they wouldn't have met with each other, but now they were here, Iris could choose whether she was willing to see Sofia and the baby or she could go ahead first and avoid them.
The soft cry from the baby filled the air and Iris touched her stomach out of instinct. She would be a mother too and it felt really ridiculous if she risked their life for being petty.