When was a 50/50 challenge ever a red card. He gave the ref a decision to make but the ref has probably 60-80 decisions a game to make. He got the card wrong.
Not sure I understand the rest of your post but if I've managed to somehow conquer the spelling and wording then the simple fact is that...
100% not a red.
Gets there first, by a long way and twists his foot so he's taken the ball with the inside of his boot. Slides initially with studs but only when moving towards the ball. Cardiff make the most of it and get him sent off, not helped by Atkinson's position. If you look at the...