If it basically goes to the title screen right after the name entry, I don't think there's a requirement to actually do anything at the name entry. For that matter, the credits will play on their own without interference from the player, right?
Assume you drop the controller (
input stops here) right after you go through the very last goal in the run. What will we see? If it plays the ending, credits, and reaches name entry, I don't think there will be problems if you stop the movie as early as the goal.
Since we're talking about the very end of the movie, if the judges don't like how you ended things, it shouldn't be difficult to make changes to the end of your movie, I hope. They don't mind waiting for any adjustments to replace your submission if it turns out you did not end it properly. What is "proper" can be taken somewhat loosely, and the end of the world will not happen just because you submitted a poorly ended file, so don't worry. Standard is to end input when it is enough so that the ending can be viewed in full.
http://tasvideos.org/MovieRules.html#MovieMustBeComplete
As long as that is done, there are no problems.
... On a less important note, it's more of a curiosity factor I was thinking about for the credits. How high (
or low!) can that counter go? The game doesn't give any acknowledgement beyond a short message for whatever you do in the credits, right? It's not required to TAS it, since you already did a good enough job completing the rest of the game.
