You can trully make it all without it if you are for real of course.
As I said biggest part that let's say I give script a task to make like 50 ads with 10 images, split test that and that... After a few.... like 5, some JS error appears and it don't work and I need to press ok, after that if all work some shit with creative....if not that than some freeze when filling interests or so... and I can go on and go on... (
I do not submit more than 100 at once cause really have like 50% dissaproved right away, they spot it easily. But I actually made it faster by hands then with it, believe it or not lol