Quote Originally Posted by Archangel View Post
And to be fairer everything done to the anime was under the strict consent of the author, he even wrote some of the filler arcs we got including the final one
Which is why I said it was made canon. Its in the quote.
The point I was trying to reach is that the original material was so small they had to expand it. Contrary to many other series, Railgun at least had input from the author.