NFHS 6-2-4B- The pitcher on the pitchers plate must step with this non-pivot foot directly toward a base occupied or unoccupied when throwing or legally feinting....Penalty- Balk
(Above emphasis is mine).....I am the judge of what "directly towards" is to be legal on game day...and that video is not even close....even giving some leeway of say more towards 3rd than home, he isn't even close to a legal move for me.
If you try to stretch the rule, you leave it to my interpretation of how much stretch I agree to....