Called etihad. And they say 2 options.
1) take the risk and when check in as for the ammendment. But depends on who the counter lady on that day.
If let say I manage to change the name thanks to the counter lady. How about my flights coming back? Didn't get the thought of asking this. If the counter lady on the other side wasn't as nice as here. The same problem exist.
2) just make the ammendment about $200 for all.
ONe character short, they usually will not make a fuss and let you go.
200 dollars, i will take the bet.