"Objectively better" and "brittle" are at the opposites.
Perhaps they are not too smart but instead "too generative". I.e there are people who generate a lot of code but then don't do any weeding in what they did. If they continue to be responsible for that corner of the code base then everything might be fine, but if other developers pop in and out of it as well, then it will get increasingly difficult to manage.
I'd say mark out the area they are allowed to do this and keep them within those limits :). They probably will enjoy this as well as they'll have something they have autonomy and responsibility over.
Perhaps they are not too smart but instead "too generative". I.e there are people who generate a lot of code but then don't do any weeding in what they did. If they continue to be responsible for that corner of the code base then everything might be fine, but if other developers pop in and out of it as well, then it will get increasingly difficult to manage.
I'd say mark out the area they are allowed to do this and keep them within those limits :). They probably will enjoy this as well as they'll have something they have autonomy and responsibility over.