You got your way since the 1940s. It's time for a change. I don't see the appeal of superheroes dating normal people. I always consider Lois to be a hypergamous woman that is only interested in dating a god. I rather have him date his equal. Other characters can serve the purpose of humbling and grounding a character, but it does not have to be their significant other. That is just boring writing if they repeat it.
By the way, superman and wonder were pretty much equal when they fought together as a team in this movie. He only caught wonder woman in that one scene. I don't see how that degrades her character.
Hell, in the comics , superman tries to hide his flaws from wonderwoman, because he does not want to disappoint her. He is pressure in being this perfect man to her. That is not a downgrade to her character, and it's interesting seeing superman that way. Imperfection can make a interesting story.