User blog comment:Hulk10/Heather and Fishlegs/@comment-28806012-20160627042313/@comment-27609869-20160627182107

Heather is not a part of the movies. Why would she appear to the rescue when she has no place there? It would just pull the whole plot out of the loop. I think Dean would rather want to spend the time to develop his own characters, instead of shoehorning in someone else's. Heather gets tons of screentime on RTTE while Astrid has been put on the backburner, often ignored. It's time for Astrid to be the leading lady again.

You also have to keep in mind that people are not required to watch RTTE in order to follow the movies. The movies are independant. They are the main course. RTTE is just a side-dish. It's optional.

The first two movies were also 90 minutes long. An animated movie can't be longer than that.