Those were the people who already had no ultimate control over the restrictions on their connection. Hasn't the billpayer always had the ability to restrict their connection and set terms of use on people using it?
That it has been technically possible for a very small portion of the population to oppress their family members further does not strike me as a good reason for making it a one click option.
If you as a parent feel that this needs to be blocked, why not do it yourself on your own network? Everyone's happy then. Nation wide filtering seems heavy handed to me.