[applejuice]

Originally Posted by Suzuku

So they've finally revealed that the Series Composer is....Urobuchi.

http://yaraon.blog109.fc2.com/blog-entry-4180.html

I don't really understand why they felt like they should keep it a secret but whatever. WIN.

First of all, that's a false info. That's a typo by company;
Reason 1: http://www.fate-zero.jp/news/index.html#n244857
Reason 2:

Rough TS: I'm not series composer, but I do had a lot of control over how story is told.

...

Anyway, its premiere seems to be getting extremely good reviews;
http://yaraon.blog109.fc2.com/blog-entry-4180.html
They say even though there wasn't any battle sequence, the art was top notch, tension was immense.