No, what you see here is an opinion that is the result of 50 years of diving experience combined with almost 40 years of diving instructional experience...
Let's look at that bolded word, shall we?
From Merriam-Webster:
Main Entry: opin·ion
Pronunciation: \ə-ˈpin-yən\
Function: noun
Etymology: Middle English, from Anglo-French, from Latin opinion-, opinio, from opinari
Date: 14th century
1 a: a view, judgment, or appraisal formed in the mind about a particular matter b: approval, esteem
2 a: belief stronger than impression and less strong than positive knowledge b: a generally held view
3 a: a formal expression of judgment or advice by an expert b: the formal expression (as by a judge, court, or referee) of the legal reasons and principles upon which a legal decision is based
While you can claim 3 a applies to your opinion, 2 a is really the most accurate description of what you are rendering. You are giving a belief that you hold stronger than just an impression - based on your years of experience - but less strong than positive knowledge.
Positive knowledge requires empirical data, something that STILL has not been presented in this discussion. Where are the documented studies, including control groups and comparison statistics to back up your claims? If you have them, by all means present them!
Instead, though, your claim to authoritative declaration is based on your experience.
So, if I take your years and weight your opinion by that, then since my instructor has more years of experience than you do, I should weigh his opinion more heavily than yours, and thereby invalidate your input.
Now, granted, being as fair as humanly possible here, I would also have to try and quantify the other aspects of both his experience and yours, hoping to objectively evaluate how each factor contributes or detracts from the strength of your opinions.
In the final analysis, though, opinions - no matter how founded in experience - are by nature subjective. I don't say this to be critical, because all of us form opinions based on our perceptions, biases, and individual senstivities. Facts are objective; our interpretation of facts may be subjective, but the facts themselves are objective. They are not biased. We all agree that it is fact that our atmospheric air is 20.9% oxygen (usually rounded up to 21%). We can measure that. It's a repeatable metric. It isn't my guess based on the limitations of personal observation; it's scientifically documented.
Now, as to your 100 hour course. I certainly do not dispute that your course consistently produces better divers than a basic PADI OW course. However, I again question cause and effect, and I'm going to once again flip the question to a parallel.
Do private music lessons produce better musicians than group lessons because the teaching is dramatically better? Or does the commitment level required by private lessons attract more serious musicians? When someone is taking music lessons in a group, possibly at the urging of a parent or on a lark, are they going to take them as seriously as the person who seeks out a private teacher and pays a higher cost for those lessons?
Is it not possible that your course attracts students who are more serious about diving, while a shorter (and presumably less expensive) PADI or SSI course would tend to attract more marginal students who weren't as willing to commit to the work you require? You produce better results partially because you attract better students. The best instructors in the world still have to deal with the problem of students who don't want to apply the lessons. Some continue trying, and some wash them out. In any case, though, a student only learns when they invest the effort in the learning process.
Frankly, if NAUI's website had listed any NAUI facilities in my area, I would have looked into those. I elected to skip one shop's lessons because they were even more compressed time-wise than the other shop's lessons were, and despite my continued discussion with you, I tend to agree that the skills necessary for safe diving require more time than many students or instructors even are giving them.
What I don't care for, though, are these declarations that a given program is deficient and its graduates unsafe based on conjecture and opinion, rather than on documented case studies and verifiable facts.
By the way, don't try bluster on me. I have nearly thirty years working in a bomb factory, and I've put up with blustery managers for that entire time. I'm plenty close enough to being a grumpy old coot myself. I didn't let grumpy old coots push me around when I was young, and I'm sure not going to let them do so now.