Lampard said: "There are two sides to it. Didier's come out and there's been a reaction - a human reaction, I have to say - which Jamie Carragher also made once.
"Didier's come out straight away and said he has made a mistake. People also have got to stop throwing things on the pitch.
"I was around Didier at the time and I don't know how many coins there were.
"We've seen refs get hit, too, so I think people must take responsibility as a group. Didier has to take responsibility as an individual. I hope he doesn't get suspended but it's up to the FA."