How fasting is an intermediary, like PMA long course before we become generals.
Humans also have oxymoronic tendency, like molesting Moulvis, Badmash, Kaamchor and profiteering Rozedar as we see them in society. Dishonesty is best hidden under the garb of devotion. Therefore it can be safely inferred that fear of Allah and looking after His laws is not a sure outcome of Suam.
Enjoining good and forbidding evil and remaining steadfast meets the spirit of Suam. NOT so otherwise. Our Prophet also said Allah doesn't need our fast if we are not serving His purpose.
That tells that serving His purpose is a prime before if any military training. The theorized ideas of military training puts horses before the cart, the cart doesn't move.