Why do you not like them?

If it's balancing, they're going to be balanced, trust me on this.  

Organic space elevators can be destroyed with missiles from a fighter craft, the molding can be fried with napalm and anything mental subversion related only works under long term exposure.  Of which is reversible. They're not even that tactically intelligent since they don't even think they are ever at war anyways.  And terraforming speaks for itself, it's a slow process and i'm pretty sure every other faction has it too in some shape or form.

What are the rules on magic anyways?