Was it motivated purely or mainly by a need for a workable kanji/kana interface for mobile texting, with no sense of the larger implications of such a capable system as a basis for a very comfortable head start 10 years later into the smartphone adoption cycle?
It feels like such a perfect textbook example of a culture that embraces "how" much more than it embraces "why," a culture that is not endemic to Japan but actually quite common at various scales globally, because most of the time its the right mindset. But when it isn't, it becomes an enormous handicap.