Betterfox configs provide with a clean and simple interface that lets users focus on their desktop browsing experience. The overrides are there for users who want to retain features like Sync.

Edit: The project aims to have the minimum amount of needed changes, but everyone will have a different opinion on what is needed. No one can please everyone, so you have to draw the line somewhere.

Perhaps Betterfox can post a poll and get feedback on how important it is for users.