Fantasy worlds almost universally do have gods that actively work to maintain desired states of the world, so “it would take active maintenance to achieve” isn’t any sort of theoretical evidence against the possibility of their existence.
Even that aside, it’s pretty easy to think of barriers that mean you won’t end up with a modern, industrialized society no matter how many Henry Fords you have. Even more so when you can invoke arbitrary things like “magic”.
Fantasy worlds almost universally do have gods that actively work to maintain desired states of the world, so “it would take active maintenance to achieve” isn’t any sort of theoretical evidence against the possibility of their existence.
Even that aside, it’s pretty easy to think of barriers that mean you won’t end up with a modern, industrialized society no matter how many Henry Fords you have. Even more so when you can invoke arbitrary things like “magic”.