
I understand exactly what you are saying, about knowing enough to breed. I would agree but equally I know we had to begin somewhere. As to judges reports only pointing out the good points, I do judge and the judge is supposed to judge the positive things about the dog not the negative. So your report requires your comments on the good points of the breed.
I was taught to write the critique by a very well known "top" breeder in my breed. He told me that when writing your critique or judging the dog you should always refer back to the blue print, i.e. the standard. He said it was like trying to drive from London to Liverpool with out a road map or compass. You would get lost and make mistakes. If you do not know every line of your breed standard, the same thing can happen.
So as most standards start with the general appearance you judge that first, then in the critique that is the first thing you 'might' mention. Note I write "might", the reason being that if the dog is lacking on a particular point you should not mention it, as you should be judging the dog for the good points it has. A good critique if worded properly will give the reader a mental picture of what you have seen and judged. The standard moves over the dog in a very definate and exacting way, to allow the judge to use the standard to go over each point in an order, so that when writing the critque you follow the same course, and cannot leave anyone in any doubt what you saw which was good. So if the judge does not for example mention movement, perhaps you should look more closely at your dogs movement.
Another way in which a judges critique might draw the breeders attention to an area which needs attention, would be to comment specifically on certain good points on the winning dog/s. An example might be that the judge thinks his or her breed is becoming too narrow through, and the standard calls for depth, and breadth of chest with well defined brisket, using the standard wording will draw attention to this particular area.
I do wonder if part of the problem is that we all have too many committments these days so we do not have time to linger at shows and learn from those with more experience than ourselves. Perhaps this should be an area addressed by a ringcraft club? Ringcraft should not only include handling, but should cover all other areas of showmanship. Advice on stewarding, judging, understanding breed standards, (not just your own but other breeds too), the choice of correct leads, appearance etc... as well as handling and socialising the puppy to get it ready for the ring. A friend of mine used to run a ring craft club which covered all these aspects of showmanship, and it was not only interesting but you actually learnt a lot. Even looking at another breed and it's standard can teach you something about your own breed and why it has the standard requiremnets it has.
I know as I don't get to many shows that a number of new people don't always recognise me when I turn up, I often get a "potted history" of the breed, and it's particular points of excellence pointed out to me. I also find very often there are what I think of as "instant experts" who dole out advice with never a thought to the novice on the receiving end or how accurate their advice is.