I watched it in real time, and now I've taken my black and white tinted glasses off (which agreed with the penalty as Stoke are a team we need to drop points), I think it's probably more mutual holding. But can see why it's given. There's a little more on the attacker for me which is in guessing what the referee has seen.
Also to note, a caution was given for surrounding the referee/dissent. Players were told to disperse I think at least 3 times, and still didn't get the message.
What I love to see!