All this time wasted teaching players to find seams and throw with seams when you fully recognize they aren't going to do either in a game. Teach skills that can be used in real game situations.
Are you really telling me ball players don't try to throw with 4 seams when throwing? I understand there are situations on slow rollers or other plays that finding the seams to throw a ball might not happen but I would estimate that position players throw with 4 seams more than 75% of the time. It takes a couple tenths of a second to find a 4 seam grip on a infield grounder or a pop fly.