I'm not sure if those were the final numbers, but, last time I checked, I too saw that the RoS adaptation earned less than half the money of DoS. I don't even want to think about how WB Animation will interpret this data. Prob it'll be used as an excuse to not make another Superman adaptation till his 90th Anniversary.
Btw, it was a wasted opportunity not to realize a proper SM/WW animated adaptation and relegate their relationship to a subplot in the JL cartoons. It could've turned out to be another profitable concept/brand for the animation like JL and Batman. 🤔