Well I don't know if it's a baUlk or not because the video won't play for me. It just freezes up. But I do believe a real baseball person won't ever try this because.....
1. He can't even spell balk right
2. Unless things have changed 45 degree isn't even mentioned in the NFHS rule book - you just have to gain ground
3. He's illustrating this on a cow pasture