Absolutely, it appeals to a Japanese market and service culture. The japanese a fanatically loyal to their airlines just as the Singaporeans are to SQ.
However, airlines are global. If they want to bring in business from the US, Australia, europe, they need to have an alignment of service culture to these needs as well - although with a very 'on brand' twist.
It is the main reason why airlines like BA also have Japanese based crew on flights to Japan or Indian based crews on flights to India - they know the small intricases of the service from a cultural perspective and why whenever there is a 'service failure' with a Japanese or Indian passenger on a BA flight it will be a Japanese or Indian based crew member who will smooth things over.
I was super pleased to experience Japanese hospitality and cabin crew on my flight, but the small thing that I missed was provided by the UK based crew. It was just a perfect combination for me.