I don't know whether there was one original pizza-party-incident, but the pizza party has become kind of a symbol for corporations doing very cheap symbolic shit instead of real solutions (that would of course cost a bit more in the short term) when it comes to employee satisfaction.

Exactly what the other guy said. Instead of changing the way things work, Pizza Parties are being held.

Or similarly: what stops a burnt out doctor in an overrun hospital? Rehab? No! Its resilience Training. According to corporate.