Chris Foy's take on the incident below. He feels a caution is correct but doesn't categorise it. (Source: Sky Sports website).
"As has been spoken about over the weekend, there is a potential red card offence for a denial of a goal scoring opportunity (DOGSO), however I don't believe this warrants a dismissal. When the goalkeeper catches the ball, the nearest player is a defender. The positioning of the attacking player is key to the decision, as well as the likelihood of the attacker gaining control of the ball at the moment of the handball offence. The attacking player was not denied an obvious goal scoring opportunity, and I think the correct call on balance is a yellow card."
Chapter and verse on why it's not a red card but nothing on why he thinks it should be a yellow.
For clarity, there are three occasions when handball is a yellow card offence. They are:
Stopping a promising attack
Attempting to score a goal (whether or not the attempt is successful)
Unsuccessfully attempting to prevent a goal
None of these apply in this case (although I appreciate that some long-suffering Newport County fans might consider this to be a promising attack

.