A little off-topic, but bear with me.
I always thought it was a little ridiculous to blame Tsunku for every decision, bad or otherwise, that is made regarding Hello! Project. Sure, he writes the songs, and does a lot of behind the scenes stuff regarding the music itself, but I'm willing to bet that he has a lot less control over everything than people think.
At the most, I've seen him writing songs, presiding over the final rounds of auditions, tweaking concert setlists, give constructive criticism to the girls, and he USED to direct recording sessions in person.
What people need to remember is that Tsunku is a producer, not a manager, and unless you're talking about TNX, not the head of a company. Hello! Project was created as a marketing tool for the "Tsunku family", as it was called, and is a brand, not an institution.
And that's why I think it's unfair to blame Tsunku for this decision. UFA isn't his company. (TNX, on the other hand, is.)