Really? Midget? Drunk?
It was a simple question!
The BB course is nothing but a feel good exercise, or hoop to jump through for an elitist organization! Decent and competent RO's would solve most, if not all problems with incompetent shooters showing up at a match.....as witnessed by a large percentage of the rest of the World shooting action sports.
IMHO!
I don't doubt some folks will be safe without a course, and no course will eliminate dq's....not in ipsc, as it's too much movement and scenarios pushing the boundaries and very easy to make that mistake...which is mostly finger on trigger while moving, or breaking 90 (which is not holster related offense). But you can't argue that any training is not, at worst case somewhat helpful...how much can be debated as well, but it's helpful.
I believe lots of DQ's happen due to, 1) as previous sentence stated, and 2) due to lack of overall training from their own local clubs program. BB course is helpful, but is an overall course related to ipsc, not just holster use.
I've been at 4 different clubs in my life and only one, really had good club level course and supportive proby training....of which was my first club and thus, I believe I turned out reasonably safe....Have I been DQ'd ? yes, 17 years after my BB course....so eventually anyone can, but good training and good common sense and careful handling habits I've maintained, helped me be safe....
now being DQ'd doesn't mean that one is generally unsafe gun handler, for that one incident.... how someone handles gun on a regular basis will determine that they are safe or not. Lets not confuse DQ at an IPSC match with the generality of unsafe gun handler. These are two different matters.
Some folks are just not good at different things... I'm guessing people with bad habits are likely to have them in other areas of life, like driving or whatever else.
BB is for getting shooters ready for ipsc matches, not to be some national gun safety course to be worshiped. So, I'm not saying its the B all.... but since OP started this, IMHO it's helpful...
I can only image those who get dq'd right after taking the course, how they would be if they never took it

...but for those who have been, it wasn't for their holstering technique

Also, lots of DQ's don't happen due to RO's being easy, or not sure, so don't dq, or not being able to see if shooter has finger where it shouldn't be when they're running....
Back to OP.... as this is not an ipsc topic, but more about holster course..... So, I also think clubs themselves should give there own members a holster course, if they require one for them to use one... and it can be as detailed as they desire, etc..