Level 7 Referee
By general English meaning, yes. But by lotg definition, no.
From Law 12, Cautions for unsporting behavior:
"There are different circumstances when a player must be cautioned for unsporting behavior including if a player . . . attempts to deceive the referee, e.g. by feigning injury or pretending to have been fouled (simulation)."
I don't see how this quote from the Laws is not defining what the PSG player did as simulation worthy of a yellow card. It's about as cut and dried as it can be. Going down like one has been hit with a sledgehammer while holding his face is about as obvious of an example of "feigning injury" as I can consider.