Ok, but the all-black lad slows his run down too. The body position of the tacklers are practically identical. The difference is the body position of the catchers. In your video, he's standing with his shoulder turned as his defence, the Welsh lad is both bent at the knees and leaning forward too. The tackler has timed his run and tackle impeccably.
Let's use your video to argue a hypothetical case. Let say the tackler lines up the catcher, at the last moment the catcher lowers his head to be in line with the incoming tackle. With the above arguments, your text book tackle has just become a RC offence. Bearing in mind the tackler is committed and can't withdraw from the tackle.
Let's use your video to argue a hypothetical case. Let say the tackler lines up the catcher, at the last moment the catcher lowers his head to be in line with the incoming tackle. With the above arguments, your text book tackle has just become a RC offence. Bearing in mind the tackler is committed and can't withdraw from the tackle.