I'd certainly entertain it as possibility. From a purely physical perspective, I think the Gaia Hypothesis [0] has some validity to it, even if the analogy to DNA organisms is deeply imperfect.

Where I stumble, though, is identifying a way in which the Earth is actively chasing any sort of free energy differential, meaning no iterated selection pressures, and (probably) nothing we could call intelligence.

[0] https://en.wikipedia.org/wiki/Gaia_hypothesis