A few skilled low-post big men added three pointers to their arsenal: Marc Gasol, Al Horford, Brook Lopez, Nikola Vucevic. It didn't dramatically open up their games. Like you said, it primarily allowed them to complement others with better spacing. I would love the idea of Sengun adding a three point shot and becoming the next Jokic level center, but realistically I'd be happy if he could just hit spot up threes or maybe pick and pop. And that's already a tall task.