There are some other factors to consider. The first is that my impression is that Wonder Woman fans as a group never accepted the idea. Together with Brian Azzarello's run, the New 52 Wonder Woman became perceived as barely being about Wonder Woman at all, neither in characterisation nor in the position she received in the stories.
(Speaking very broadly here; it's not hard to find New 52 Wonder Woman fans or S/WW shippers here, but the general trend is clear.)
Another factor is storyteling dynamics: one of the keys for many good Superman stories is his dual identity as Clark Kent and Superman. Lois Lane was one of the most effective ways that this tension could play out. With Wonder Woman, the Clark Kent persona gets entirely subsumed under Superman. Ie, for some fans, Wonder Woman made Superman a less interesting characters.