I haven't directly experienced Japanese work culture (just language and traveling) but it seems like they value hard work above all else, which makes innovation almost a threat. You might take away someone's opportunity to show "hard work" if you removed a difficult task.
This is the root of a lot of busywork and bullshit jobs as well. People work hard producing something of little and often negative value.
Think of all the effort that goes into making competitive products, from life insurance and cellphone plans to airline tariffs difficult to compare. Compound that with advertising campaigns that don’t inform about the product or service they are selling. All that consumes colossal resources and deliver effectively negative value for society, for a market to be maximally efficient it needs informed consumers that can compare offerings.
And easily demonstrable when meeting someone in a social setting:
"Hi, what's your name?"
Then the very next question: "What do you do for a living?"
I think it's a shame because Japan is going through a massive tourism boom at the moment. There's surely a huge number of incredibly smart and talented people who would like to bring their skills in and help lift Japan out of its economic slumber. But Japan is still very closed off and shows no signs of wanting to modernise.
Moving between very different cultures is a challenge, but the rewards are accordingly nicer, but it really sucks when the new culture doesn’t welcome and integrate you into it.
Between Hungary and Turkey, something similar happened with the pogacza. I brough some cheese pogacza to the office and a Turkish colleague immediately recognized what it was. We couldn't really figure out which culture it comes from, but we agree it's delicious and dangerously addictive.