Because you are thinking every trainer is really bright DO. They aren't. They are just like good and bad tradesmen. There is an 80/20% rule that runs through everything in everything in life, every department. 80% of trainers are just average at what they do, or just not that good or just providing a basic service, 20% of them do know their game though. That rule runs through everything that we view as being good at your job, not just horse racing, anything in life that takes being really good at what you do. That is why 80% of all prize money is won by just 20% of trainers. Mullins for instance has worked out how to make that even larger towards the 90%. Most people with jobs are 80/20% in ability. Horse racing is no different.
When someone else works that out in horse racing, they will be IT like Mullins is now. Martin Pipe was it to a degree 30 years since, but Mullins has nailed how to beat the 80/20 rule. He is the best we will ever see until someone else works it out, Elliot is not far behind for instance, and I hate saying that because I hate the tw^t. Unless you can beat the 80/20 rule, you will not be special in any sphere of anything. You are looking at people who aren't very special at what they do really, just average on the 80/20 guage, probably 60/40 in real terms.
Think about when you look for someone to maintain your boiler, 80% will be useless f8cks, the other 20% will be people you recommend to your friends, same with any house maintenance.
80% of any sports money prize wise are always won by just 20% of the participants, all sports, all businesses. Anyone who can get this up to 90%, are really special, Mullins must be getting close to that?
You are thinking all trainers spot a 140/150 jumps horse in their ranks will know that, they don't though, sadly most have a questionable idea what they have. The ones who know they have a really good horse 20lb better than shown to press are the trainers you should follow, no value though there is there??