it's only a issue because so few follow that standard.
When I became a PADI instructor in 97 we were told that the students only needed to demonstrate each skill once "satisfactorily" to move on to the next. Thankfully that has changed in standards, unfortunately it hasn't changed much in practice.
If mastery was achieved in CW then we would have a much better industry. That said, I don't see any real energy to actually care about that "mastery" when you see articles like this.
Getting Scuba Certified On Vacation: It’s Easier Than You Think
One hour of CW, 25 skills per standards (not likely all done) and not a chance in hell that mastery was achieved, even if he was a gold medal swimmer.
Is PADI aware of that article? Well the picture is supplied by and they are well branded... I suspect they are.
While I agree with you I find it too easy to point the finger solely at the certifying agencies, the instructor teaching the class is ultimately responsible for making sure that at the very least these standards are met. Would you as an instructor be ok with teaching cw in one day? I know i'm not and I don't! We do a lot of referrals and I'd say that in 50% of cases we end up re-teaching at least one day of cw before we take students out in ow because skills were far from mastered! Is that PADI/NAUI/SDI/SSI...fault? No, it's an instructor not doing his job!