[Dragaera] magic speculation

[Kris Green via Dragaera]

This may be a stupid question,

I was chatting with a friend, and he said this; "It's interesting that, in
order to make the musketeer-y tone work in Phoenix Guard, he had to tone
down the magic and remove psionics."

Now we know the story reason for why magic & psionics are more prevalent
after Adron's disaster - it spawned the lesser sea of Chaos.

I was wondering if the story rationale came first, or if it was
retro-fitted to include the events of the Phoenix Guards books?