Response crossposted from comments on Kickstarter:
“You seem to have worked this out for yourself! But… to keep things simple, we included one short in each 2-week writing cycle for the season. Since we have 12 shorts and 13 episodes (each getting 2 weeks of attention in the Writers’ Room), it works out perfectly. The Gamera Writers’ Room was the only one that didn’t ALSO riff a short.”