The following claim frequently pops up in discussions of Angel Beats:
The reason Angel Beats seems so rushed is that the show was originally planned for 2 cours (24-26 episodes) before being cut down to 1 cour (13 episodes) late in production, at which point it was too late to re-pace everything correctly for the shorter length.
I have never actually seen evidence to support this claim, and I have a sneaking suspicion that this might be one of those things that somebody on the internet just said once, and everybody else picked up on it because it makes for a good narrative.
Is there any evidence that the above claim is true?