Hello, @marcybetancourt. Nice to have you as a reader.
Some scholars say that although the film was based on real facts, not everything happened as it is presented. Some even doubt that there was the mass murder on the stairs linked to the battleship mutiny. Also that the victorious end does not coincide with what happened historically, that the sailors were imprisoned and condemned to death. That's why the commentary and the quote from the end.
This is the second post in this series (the first was about Fritz Lang and Metropolis (see here), which I will alternate and dose with the series of literature. Thank you for your eyesight.