You're right, it would be easier in every single way.

It would also be different enough that it's not a useful or meaningful comparison. You might as well say "bake a cake while standing on stilts, then we'll talk".

By the way, humans have been mining, and on-and-off purifying, iron from the Saharan dune sea for a thousand years. https://en.m.wikipedia.org/wiki/Zou%C3%A9rat