Sharkdiver, kudos to you 1 for designing the course, and 2 for trying to defend it here (a near impossible task). I had assumed when I first read this that there were some skills being taught in the course. A course that could lure divers in for more training has to be of some benefit. If there are some skills that help make them a better diver while having some fun, great. If someone doesn't want to take it, that's their choice.
Just like the master diver course. Some like to take those courses and get certs, some don't. Why belittle them if they do. What is hurt by someone taking any course? I have to believe that every person that is a master diver gain some knowledge and skill by taking those courses to get there. There are some certs that I have zero use for, but there is no way that I will belittle those who take them. I can't judge what motivates them and how can you? Now if some agency comes out with "Destroying living coral" course I will say that's bad.
If you don't like a course, don't take it.