Are you the pilot on this service?
Answer "Yes" - then whatever PADI says, when you have the responsibility for 100-400 pax behind you, wouldn't it be better to be 200% sure?
If it is "No" - then it's your life, you will become incapacitated in a pax seat and nobody else is at risk, oh except if they have to divert the a/c to offload you.
Sorry if this puts a damper on your hobby. The alternate is to fly with an airline with a route structure and layover period that allows you to enjoy your hobby without any risk. IMHO.