Series co-creator and director Susanna Fogel tells IndieWire about how to stop worrying and make a very fun spy show. [Editor’s Note: This article contains spoilers for the season finale of “ Ponies .”] Co-creators Susanna Fogel and David Iserson always knew the end shot for Season 1 of “ Ponies ,” which is all the more impressive considering what it is — its two protagonists trapped in the middle of a very real fire that happened at the U.S. Embassy in Moscow in 1977. The project lived in