Of course, the enemies would need to be quite stupid to attack Roan's group with only three members. After all, unlike Roan, Lita, Vrie, and Krikei were all in the Void Tempering Realm. Roan's words were directed at the remaining five that were still alive, two humanoids and one demon beast. Their group had five Void Tempering Realm members, two humanoids, and three demon beasts. However, the strongest among them was only in the Late Stage. Roan could totally fight that one on his own if he wanted to.
The reason these other five were still alive was that they were more focused on not letting Roan's group escape. Little did they know that their slightly greater distance from Roan's group would be what saved their lives. Two of them, obviously, were in the Void Tempering Realm. It's just that they were in the Initial Stage. As for the other three, they were in the Transition Realm.