I always say one good job will bring you two more, one bad will lose you ten. I see nothing wrong with Morgans decision to not tune piggyback systems and possibly risk his tuning reputation on a something that could go south quick(due to hardware, not personal capabilities), ESPECIALLY when considering his expertise in the said field.
The “right way” is merely a statement for ones personal standing on what the minimal requirements are to what you do for your business. I have mine in my business, why should any other shop not have theirs? Shops and their respectful owners have different work ethics and standards and you eventually cross a line where the small profit(if any) is negligible in comparison to the negativity that surrounds the issue if it turns bad.
Smart move in my opinion.