(not quoting every other part of the article where plants form committees to decide what to do next and receive "lignin" as a ready made thing, not as an emergent result of its own evolutionary process)

Oh, no. These kind of weird anthropomorphic ideas - that evolution is actively "finding problems" and "testing solutions" - take years to remove from students' minds. And make it very unclear whether the author themselves actually do understand what they're talking about or just parroting the same story they heard.

Cue the "but it's for kids!" arguments. Kids aren't dumb, and perfectly capable of understanding selective pressure - but you are doing them a huge disservice by making them feel like they understand something when really they understand your inaccurate (yet entertaining!) story.