Utterly ridiculous, the FAA has no knowledge or concern for 3 and 4 engine operations. They are trying to fit everything into their narrow 2-engine view. While ETOPS experience has made ALL airliners, regardless of engines, more reliable and safer, there is no reason to restrict 3 and 4 engine airliners to having 180 minute ERAs. A 747 OEI has more redundancy than a B777 takes off with.