Let's say 60% to what you want to train, 20% randomly given for free elsewhere and 20% lost. .
Even trying to make the best of a bad situation, you get things like this. It's like saying NBA coaches don't know what they're doing 20% of the time and aren't doing anything 20% of the time. Even a Div. 2 college coach would get fired if he were that bad.
Better to
correct the bad situation, imo. When it could be fixed so simply and logically, is there any reason to cling so tightly to the illogical, confusing, complex system we have now other than the fact that some guys have sort of figured it out and they want to keep their advantage over everyone else?