@Kazzier 100% by all tutorial creatures together with the rabbit and for finding Red Maple, Larch, Pine, Flax, Penny Bun, Potato Plant, Blueberry Bush and Small Stone is already the maximum for the KP, which you can gain on the tutorial island.
But about the possibility in the tutorial to bring the mastery of primitive items to the maximum, I will need to ask internally whether this is intended or is an oversight of the developer.