Why was Pique also given a red after conceding penalty?

Gerard Pique saw a red card and a penalty given against him in Barcelona's Champions League opener with Ferencvaros. The central defender clearly pulled back Nguen and the striker went down to the floor. Referee Sandro Scharer gave him a penalty and a red card. 

The incident surprised many people as they thought you can not see a red card and a concede a penalty in the same incident. However, when the IFAB got rid of the triple punishment back in 2016 for incidents in the box, that was only when a player was trying to play the ball such as a foul with your foot. When you make no attempt to play the ball such as a shirt pull, the penalty and red card still applies. 

It was a severe punishment for the defender who left Barcelona with 10 men and he will miss the match in Turin against Juventus.