Politely disagree Silent - the O'Connell one should not have been penalised.
From the FA's Laws of the Game, bolded the key bit below.
But in essence:
1) Hand/arm did not make his body unnaturally bigger
2) Hand/arm was not above shoulder level
3) He did not gain possession and then score / create a goalscoring opportunity after the ball touched his arm.
And I'm sure you'll agree he didn't deliberately touch the ball with his hand/arm
HANDLING THE BALL
It is an offence if a player:
- deliberately touches the ball with their hand/arm, including moving the hand/arm towards the ball
- gains possession/control of the ball after it has touched their hand/arm and then:
- scores in the opponents’ goal
- creates a goal-scoring opportunity
- scores in the opponents’ goal directly from their hand/arm, even if accidental, including by the goalkeeper
It is usually an offence if a player:
- touches the ball with their hand/arm when:
- the hand/arm has made their body unnaturally bigger
- the hand/arm is above/beyond their shoulder level (unless the player deliberately plays the ball which then touches their hand/arm)
The above offences apply even if the ball touches a player’s hand/arm directly from the head or body (including the foot) of another player who is close.
Except for the above offences, it is not usually an offence if the ball touches a player’s hand/arm:
- directly from the player’s own head or body (including the foot)
- directly from the head or body (including the foot) of another player who is close
- if the hand/arm is close to the body and does not make the body unnaturally bigger
- when a player falls and the hand/arm is between the body and the ground to support the body, but not extended laterally or vertically away from the body