I just believe we're relatively new in "discovering" trees...that more valid information and awareness of their being and needs and interrelationships have been discovered, tested, and acknowledged just in the last 15-20 years than the last 200 total.
What's important is that information gleaned from this "new science" isn't monopolized into what's been mainstream agriculture for the last 60 years - if there's a manifested problem we don't concentrate on chemcials to rectify it. It misses the point and often perturbs the situation. Finding out what's attached and necessary for a system to function is new in horticulture and we need to expand more. Extropolation from that to human health, planetary health, etc. will advance humanity far more than a market-driven system of economies over ecology.
Some still think ecology is a dirty word and blasphemous science. Cancer cures are fine, but finding causes preceed the need.