The fouls are quite clear and easy to see.
At 23 seconds in the first video, notice Saez’s right hand and wrist are on the left side of Maximum Security’s neck. When Saez thrusts forward on the left side, it forces the colt out to the right - clear and easy to see, absolutely and fully intentional with malice a forethought. Notice the position of the right hand of all other jockeys is opposite that of Saez.
While Saez causes outside interference, Velasquez and Code of Honor to get through on the inside. At 2:10 in the second video, Saez moves left (notice the outside to inside tire tracks), brushes against them halting their momentum. As there could be no other way, the best horse in the race, War of Will comes back to Saez’s outside. At 2:25 in the video you can see, once again, Saez “scrubs” against the left side of Maximum Security’s neck, forcing him to veer out (inside to outside tire tracks) into the path of War of Will who then backs out of it.
Evidence indicates the Stewards made the correct decision. More importantly, we are all fortunate that the reckless riding by Saez did not cause a terrible mishap that would have put the final nail in the coffin of a great and dying sport.