1
... doubt you'll find a lot of snark on SSI towards the estimable Mr. Sullivan. :- )
... if the toe is pointing toward 3B, that also causes the Aumont-type locked front leg, so that would definitely be job one.
A difficult fix? My old martial arts teacher would have (before a bullpen session) put something uncomfortable in my shoe, at the heel, so that I had to land on the front toe in Randy Johnson style. That automatically unlocks the front leg and would surely make Snell aware enough of his landing toe that he'd get it pointing the right way.
But Eastern teaching techniques are silly by definition, correct? :- )