The oddity which were the smaller groups' movements would have been mocked if they had been doing it on the training fields. However, right here and now, no one dared make a move that was normal. If they were to walk like normally and even so much as graze a tree root, then they would be fighting a myriad of vines and branches.
It was the roots beneath dried leaves that was the real danger. Walker was sharing directions since he and Alma could work together to share their sense of mana and her sense of plants. That allowed them to be able to feel the roots underneath the ground and even the leaves.
From time to time, Gil would launch an around from his bow in to a further section of the jungle. This would stop anything from sensing them when they made a bigger move. While it was just a slight distraction for the guardian vine and root, they were relying on every single card they had to get closer.
Your gift is the motivation for my creation. Give me more motivation!