Why would you think that? If IHA had won the Preakness, it would not have mattered what had has done before, he could have retired on his earning from bing IHA trainer. I don't like trainers who do doubtful things, but as far as California, he is on suspension, but it was never proven he did anything wrong.
I give him credit, actually. Even in the press conference, he said" could he run? yes.. Would it be good for him to run? No. If O'Neil was as bad as they say, he would have shut up, bandaged the horse and let him run, probably to a horrific injury. Tendons that are slightly injured are known to let loose at anytime. Would you have wanted to watch him break down like Barbaro?
Even the vet from Rood and Riddle, who consulted with the track vet said the injury is there and not to run the horse.