Yup that's what I do too. Works great. And nbdev auto-generates __all__ so I don't have to think about anything -- it all just works.

(Besides which, when you do have __all__ just regular wildcard imports work well anyway. I've been using them for >10 years without trouble. I think people just repeat the claim that they're a problem without having 1st-hand experience of using them with __all__ correctly.)