Before we had phones, or TVs, or radios, or even books, we watched and learned from the animals and insects. And they had, and still do have, many worthwhile skills to teach us…
Conquerors, and even the people they bring unwillingly with them, tend to ignore the native people, and their native wisdom. This is as true on Earth as it is on Grandmother.
Marven was a wise leader on the Lush Planet. He knew who his sworn enemies were. He also knew that to overcome, sometimes you have to make adjustments.
Just as it is here on Earth, there are underground wonders on the planet called Grandmother by the people who were living there before the Squares came.
When we get older, no matter how radical we might have been or might still be, the next generation will always produce someone with unexpected talents. Someone who we might have underestimated.