The old knight has been right about basically everything. Updates are pretty long, so in case some of you have forgotten, their mission was to verify the existence of a threat. Not engage it or attempt to destroy it. They found the ominous witch person who really, really didn't want them in that forest. That's verification. The young idiot didn't understand that the old knight was trying to disengage and go back to make a report on what they found, he picked a fight with something they didn't need to fight and were not prepared to fight. The mission was already a success and he snatched defeat from the jaws of victory with his idiocy. They were there to see if there were any witches: we found a witch, cool, time to go back and inform the church so they can return with an army and burn the forest down. Except this idiot wants to swing a sword at it, so now any chance of stopping Mynoghra before it got off the ground just went up in smoke.
Good job, idiot. You've doomed the world.
Or I suppose I should say, thanks, you idiot. Now the plot will continue.