2 and 4 are different even in Singlish

I think you should request Singapore ATC tapes to be sure. Make sure the chain of custody is not compromised and no alteration was made.

We really don't know what happened behind the scenes. In this case, I don't know whose story to believe.

The conventional wisdom is that EVA is an extremely safe airline and rated highly on the safety front. The Evergreen corporate culture is extremely disciplined and holds employees accountable for their actions. If the pilots did make a mistake, reports are written and they would be held accountable.

You have to feel safe when you fly. If you don't feel safe with EVA, fly someone else.

Occasionally, I have pilots in the US domestic routes reporting the wrong destination or time zone. I too wonder how focused they are.