First, it is Jeff Gural's racetrack. Like it or not, if he allows drivers who have been excluded at other tracks and persistent rule breaking convicts, while not accepting those guilty of being "flashy sob's" that is his choice and he is entitled to it.
I am torn. Walter is one of the two best I have ever seen on a half (Lew Williams the other). But how many chances does he deserve? I don't know the answer. And while foot out of the stirrup/kicking is a minor offense, it is still an offense that occurred repeatedly. He then failed to pay fines in a timely manner and was suspended. He also got hit with a failure to give effort on a Tye Loy horse (don't remember which, Sand something or another am sure) and received ten days.
Any license must be probationary or conditional for a set period of time. And would Walter (and the sport) not both be served better by having him start out at a smaller track? Just asking.
Finally, Walter can be absolutely charming, whether straight or stoned, and he can also be an absolute schmuck. That should not enter into the equation at all.