UDP: Any benefit of using FEC over just using redundant-data

[andersbranderud]

I received this reply by a person on the Live555-mailing list:
"FEC is not needed for UDP. The UDP service delivers a packet, or does not.
UDP does not randomly flip some bits inside the packet.
To tolerate packet loss, only redundancy is needed."

I would like to know if this statement is correct; and please also provide the sources on which your answer are based.