That's a good point that leads to another claim, and I don't think those are exceptions at all; Nintendo and its products is
quintessentially Japanese if we didn't focus on the payload content bundled in their software. CEO always in suits and shows fatherly smiles at most, the OS not allowing browsers or sideloading, the corporate having zero hesitation suing modifications on first sight, etc. They are completely in line with the rest if not leading the puck.
And I have an explanation: Japanese education imprints and emphasizes for the whole duration of it that work is strictly for community goals, education is for learning officework punctuality and not for skills, and fun at work is nothing but slacking[0]. Some attribute those to agricultural tribalism; I don't know, but I think these imprinting statements fits behaviors describe in GP and of Nintendo(et al.).
"Move fast and break things" would be just display of laziness, ease of use would be just enablement for saboteurs, iterative design would be just poor planning, under this thinking. UI improvements based on subjective individual opinions would be considered an attitude incompatible with the concept of work, especially for business applications. No wonder that GP runs circles around others when the impediment is in individual successes that products offer users, which the whole culture is united to always look firmly away in all professional settings.
This become less apparent in games and gambling because business goals just happen to align with joy and ease of users, hence Nintendo seems unaffected from consumer standpoint.
0: Such words as "comfort", "efficient", "precise" are used as euphemisms and self deceptions when pursuit of fun or ease cannot be avoided