thank you for posting this. It is absolutely fascinating!
That is an ongoing conversation in both herbalism and in native plant restoration work. Should we be looking at what "pristine" areas were like and be emulating them? Should we be upset when what we plant doesn't emulate what we assume was originally growing there?
Or, should we be flexible, and go with what works? Let the plants guide us, let the plants tell us what they need and where they want to go?
I'm in the second camp; not only do these plants know exactly what they need, you can't force them to do anything (trust me, I've spent years trying to convince home gardeners that they should add native plants to their yards, but also cautioning them that they can be unruly and downright willful about whether or not they like being in your garden).
They migrate, they creep, they communicate, they make choices about where they're going to grow or not grow. They have a lot more intelligence than we give them credit.
I love that these folks are approaching these areas without bias and just learning about what's happening there now. It's amazing!