No. What lore we have establishes that the world existed and pre-dated the elven gods, and the Titans cultivating it was a basis for ancient elf-dwarf conflict. Mythal didn't create the earth.
Where is it established that
the physical world predates
the Evanuris? We really have next to nothing about
the world (Fade or physical) prior to
the ascension of
the Evanuris o
ther than
the Evanuris won a war against an unknown enemy.
I see no evidence that
the Titans cultivating
the land brought
the Titans in conflict with
the Evanuris. Mythal hunted
the Titans to make
the Earth bloom that does not sound like someone trying to stop destruction to me.
Cole and Justice are demonstrations of how spirits aren't 'just' single-minded concepts once they encounter the real world- especially Cole on the human path. When the Fade and the Real World blend, the spirits take more nuance and complexity that they lack in the Fade. Likewise, people who get tied into the Fade (especially abominations) become more driven/dominated by an aspect, even as they still retain nuance of the Fade Influence: Anders is a good example.
Cole on
the human path isn't a spirit anymore. Or at least I would classify him as human and not a spirit.
Justice (or more accurately Vengence) is
the perfect example of a spirit in
the non-fade world. He is incapable of comprehending any nuance to his ideals and is broken as a result as
the world recused to change to meet his expectation. Vengence never gains nuance and is incapable of functioning as a result. Solas on
the o
ther hand is capable of such nuance as seen by his desire to be proven wrong yet again (at least if you friend him.
Anders is an interesting case. On
the friendship path, he sort of becomes subsumed by Justice. I'm not really sure if he would qualify as a spirit at that point or not.