Right from the site:
The Census Bureau states, "Deciding which child care arrangement to use has become an increasingly important family issue as maternal employment has become the norm, rather than the exception." However, the Census contradicts itself by assuming in the SIPP (Survey of Income and Program Participation) that moms are the designated parent and dads are a childcare arrangement.
If this is the norm, and decisions about child care arrangements are increasingly important, then it is increasingly important to accurately portray such arrangements. To equate father-provided care with grandparent, or sibling provided care, as something functionally different from mother-provided care, does not accurately portray the arrangement, or the social, economic, and policy consequences of it.
In short, according to their policy, I am not a stay at home Dad to my kids. I'm currently employed (without pay) as a full time babysitter to two children (doesn't matter that they are my own).
This will be going to the House and Senate in addition to the Census Bureau. Real quick and easy. Take a minute if you can.