Amazing stuff... but should the score have stood? Opinions differ.
At around 0:15, one of his team-mates can be seen throwing a low block at the 25-yard line, making minimal contact. In all forms of the game, blocking below the waist is forbidden during kick plays - however, the contact made in this example was so minimal, it could barely be called a 'block'.
There have been plenty of times in my short officiating career where player have wanted me to throw a flag for a block in the back, except the 'block' was nothing more than a hand on the back. In this play, the 'block' was nothing more than brush. Whereas in soccer you can still be penalised for an attempted foul, the same cannot be said in American football - there has to be an actual foul. Merely touching an opponent isn't enough.
So, well done Sean Landez!
Full story: Sean Landez Touchdown: Sharyland Football Player Returns Missed FG For 109.9-Yard TD (VIDEO)