Blake Gardner
"Why" is a one man winding road less travelled...
Study is essential to elucidation Pete - someone can tell you black and white to your face what the truth is and your intellect may even be able to follow the logic but there nevertheless remains a gross deficiency until elucidation dawns upon the inward man...this only comes by due diligence and patient persistence.
I will say though the simple answer to "why" is that law merchant/admiralty is an adversarial game, like chess, it's competitive based therefore the non-disclosure et al.