There's nothing overly fantastical in 1984. A wishing stone with no visual spectacle and only one criminally short metahuman fight at the end is pretty much it. otherwise she fights dudes with guns and her powers are nerfed by the plot. Snyder Cut looks WAY less grounded than 1984.
People want big action set pieces with Circe and mythological beasts and the return of Cheetah in WW3. None of that is grounded. Aquaman proves that you can do all that stuff without going the Snyder route.