Yeah, that makes perfect sense. After all the claim is only a rule of thumb as far as I can tell. There will obviously be exceptions…
In the early days, I thought the woman I married and I were opposites. It’s true enough that we were in some ways, especially superficial personality traits EG : I’m a loud mouth, she was quiet. I’m actually very shy, with no small talk and find it hard to make friends. She was relatively easy going and knew lots of people. She was mean spirited, I am not.
However, as time went by we discovered we a were very much alike in more important ways, especially in terms of values an ideals. Essentially the same backgrounds too; both from Catholic working class families. That meant that when she returned to the Church, that didn’t effect the marriage .(that was already pretty well fucked by then)
Of course it could simply be that you and your wife have stayed together because you love each other and have worked at making a go of your marriage. In my experience large numbers of couples don’t know how. My wife and I didn’t.