The Eternals' original '76-'78 published run had limited appeal (similar to its 1985 miniseries follow-up), and even after being fully merged with the superhero side of Marvel, it did not generate Spider-Man-like interest / sales due to its kind of concept--something some of the reviewers have touched on in so many words. With that in mind, if this film has a low key reception (post credits reveal included), some have no need to attack reviews as if a MCU film needs to be a hit. Either one enjoys it, or they do not.