Animations are a nice luxury to have in a game, but I'd take more story/renders over them any day. Especially if it means more reliably frequent updates and less stress for the dev.
Am I understanding correctly that the "looking for a tablet" scene is the end of the current storyline and that the other sections on the main menu are "DLC" that is not related to the main story? Is there going to be an update at some point linking them to the "main" storyline?