True. Although a friend of mine told me that her husband’s Rav (Rav Shmuel Kaminetzky) says that she has to daven Maariv on Shabbos in order to avoid the problem of her husband not being able to be motzi her in Kiddush since he already davened Maariv so it’s D’Rabbanim for him and D’Orasia for her (if she didn’t daven Maariv).
That was the only time I have ever heard anyone give that as a solution though. And it is possible that he meant it as a chumra.