Thank you for your kind words, Lori
It was not in my initial plans, but I'm currently working on an article about the impact of blood types in Japanese society. So I'll answer your answer in the article. Watch out for it later today or tomorrow ;p
The hosts using the examples of the minister blaming his insensitive remarks on his blood type, and of the soldiers being grouped via blood type can be misleading, because they do not necessarily reflect the views of the general public, or the majority. Some of the Japanese people I've spoken to didn't even know about these, and those who did didn't really care.
The articles I write are based on what I see, hear and experience personally in Japan, and while they might not be sensational or newsworthy, readers can be sure that they're about the real Japan. So my next article will talk about how the general Japanese really feel about blood type and its relationship with a person's personality.