No doubt about it jay, And a lot of divers do also. and there are even more reasons then What you have posted.
No one feen, I call it as I see it. When a diver post and comes up with hidden info later, or changes there motive in a dive, explain why you have done so or don't post.
Very thing that has been posted before, 40 min dive, and this is not a technical dive. Seen different responses, after this and the latest one is the gue format of doing stops on a not madatory deco dive.
Dr Bill even asked what is this way of theory to gue/dir deco.
So If you are so concerned of a safety practice, you need to make a business change there way's in what you think happen. Then why are you performing unsafe dive practices that are against deco and air management.
Jay I fill my tanks way beyond and get many dives out of all different size bottles, and this gives me lots of deco time, sort of like the deeper stops that is mention in this post.
Getting bent is a fear that brings all of this to perspective, having slow ascents, minimal nitrogen build up and diving mixed gases is what is the theory is to achieve safe dives from not getting bent. Then other things come in to play.
Divers that dive Al 80's for years have an advantage over other divers. they have become great at there sac, where the more CF on a diver from the get go is how they dive. We all have a pressure gauge, and follow it down to the given 500 psi.
Deco diving theory has now different amounts of gas supply, cause of multiple fill pressures to get the approved CF. This of course is not a difficult thing to figure out. Yet older seasoned divers have a much better dive profile in the gas supply to perform safe deco dives if needed, Where as ones that are at 100 CF or bigger have been conditioned to dive with more CF of gas.
A divemaster in warm water diving AL80 is along the same reigns.
Deco diving is a fun math theory, its even more fun for Recompression.
To do the deeper stops is only a theory of diving that has came a long the wheel.
When doing a multilevel dive, you are now being more accurate in your nitrogen loading, therefore ascending to shallower depths and leveling out has made dives longer, now if on a deep wreck there is an ascent line and there is some multilevel diving, but not the rest of the way up the ascent line. So now you have make your own and this is where we find doing a deeper stop after ascending is now a deco theory.
I was taught to slow and stop on the way up from wrecks when I started diving, yet under stood it in the multilevel diving.
The funniest thing I like to see, when a person ask me about getting bent, and only has a little knowledge, they comment the air bubbles, and I say I hate it when I am diving deep and a buddy, He has a problem and fly's to the surface, they ask why, I reply that once they surface all the bubbles blow there head clean off, and then it sinks and I catch it, now I have the sea life all over me, then when I hit the surface its like caring a bowling ball.