The Happening suffers not just from a storytelling standpoint, it is also not balanced in its acting, scoring, or editing. (qwipster.net)
To be honest, it's also the lamest possible solution from a storytelling standpoint, as Thanos» Infinity Gauntlet (which was badly damaged during the Wakanda battle, so it may not even be possible) becomes a sort of deus ex machina, lessening the emotional impact of Infinity War on repeat viewings. (birthmoviesdeath.com)
But beyond that, from a storytelling standpoint, Marvel needs to find a way to make Thanos a villain with a story, to give him a motivation beyond destroying the universe simply because that's what he does. (vox.com)