You can have the best of both worlds and play off the joke, as that fits well within Jin's character as far as I see her to have a moment of dialogue related to the swearing and then she corrects it and you can see the swears. It's not plot-centric so in the grand scheme of dialogue it'd be unnecessary, but I would count that as a bit of character and world-building in relation to his augmentations and how they can function. Unless that's not how they work in the overall world, in which case the joke would push beyond the bounds of how augments are designed and not worth going into the 4th wall potentially. Heh, something about parental locks on a brain augmentation gets me chuckling.