A tire bouncing along at 65 mph seems to have a lot of free energy (kinetic), as does one stuck on an icy slanted roof (potential) :). I may be unaware of the concept of "free energy" you are using here though. Can you point me to where I can find out more?
I absolutely agree that abstractions are necessary to efficiently convey concepts in a discussion. I also understand that abstractions are never perfect. What I wanted to really say is that I would be much more inclined to agree with the first and less with the second of these two statements:
Trees can transfer information to each other, and we have the ability to understand these mechanisms. Trees speak to each other in a language, and we can listen in.
It's a matter of phrasing, nuance, and insinuation. Different listeners may form different ideas when they read the above two statements.
Also disagree about the last statement, and not specifically in this case, but generally. It isn't necessarily about anthropomorphizing, but about using abstract and compact representation of what you're talking about. Humans emit sound waves, but we abstract that to segments, time-frequency descriptions, then phonemes, morphemes, ..., and finally language. You get the point. It's easier to reason about that way.