An initiative that isn't necessary, because gambling is for fun. When it is associated with the learning, it becomes a profession. Giving a visual content to make gamblers know how to play is different from giving a course on a specific game. Some might find it a needed one, but in my view it is unwanted.
Does the course assure of a win and profit out of the game once after the completion of the course. No, it won't. If it assure of wins, then it is fair to have such courses.
It's not totally 'unnecessary' but rather just a simple idea that made happen. Yes, gambling is indeed for fun, but 'fun' is just a perk on those who enjoy playing it. Learning about it more WHILE enjoying it does not just make it a 'profession', but rather a fun game with a serious strategical analogy and movements. Also,
'giving visual content' is how courses are being taught, hence could never be different, unless such visual wouldn't contain information and just pure images with no explanations to be followed. Lastly, maybe not everyone wants such course, but some will - especially those who knows how enjoyable gambling
(especially blackjack) could be.
On the other hand, Courses, in any aspect of gambling or in real life, never assures something out of it. Imagine taking a Programming course, the professor or the administration that offers/endorses that course NEVER assures that you will be a better programmer, YOU MAKE YOURSELF ONE. Hence in this case, this program is just a plain course to teach strategies and ideas in Blackjack gambling, and never assures you can use such course to be rich.