This is just a guess but I think that there are two problems here, not one: 1) inefficiency strictu sensu (more operations required for the exact same task), an

This is just a guess but I think that there are two problems here, not one: 1) inefficiency strictu sensu (more operations required for the exact same task), and 2) lower diminishing returns (that kitchen sink being included weights far more than the rest of the project, but maybe you should still not remove it because it still provides a small return of user utility).