When the blimp snags on the skyscraper spire, the blimp is torn on the bottom. But when Wonder Woman attempts to repair the damage, the leak is on the top of the blimp.
The Riddler stays behind to taunt the Superfriends after the Legion leaves to conquer the Earth and galaxy in the year 3984. This leaves Riddler with no way to go to the future, yet he winds up there close to the end of the show.