My Japanese Experience
Arriving into Osaka on the way to visit friends I was told by a JAL flight attendant (female) to remain seated until all the Japanese passengers had disembarked.
The point being there is good and bad Cabin Crew no matter which airline you travel with.
The effect of this experience on my trip and my view of JAL...zero
Had a great trip and love JAL.
BTW...if the crew want to use a few spare seats for rest purposes...who cares?
There is always some selfish turkey(passenger) who wants to hog 4 seats for themselves