I did not enjoy Orgins that much, it was boring to say the least.It was slow moving and was somewhat hard to understand. The characters were somewhat interesting, however the storyline to me was not that great.
It got weird when the plants give Agito powers, at that point,I thought I was watching Captan Planet.
Being in a world ruled by plants would definitely be a dystopia,meddling with nature is never a good idea, like in Jurassic Park. It is the most important thing in Chaos Theory.