et. al.,
It would seem that sand obtained locally, would best reflect the natural settings.
The other factor is playability and particle size, important considerations, I think.
Other factors can be, rainfall, bunker pitch, and wind.
So, with the introduction of more variables, local sand may not be the solution to the combination of problems/considerations.
I don't particularly care for bright white sand as it bothers my eyes, but there may be times when white sand may be prefered or necessary.
This isn't a black and white issue.