I'm also childless, and soon to be jobless, so I presume I'll be affected. As the article pointed out, however:
The law calls for a major expansion of Medicaid eligibility in 2014, when all states must begin covering low-income adults.
A handful of states, including Arizona, have already been doing that, with the federal government agreeing to pay its usual matching share of the cost. Five other states currently cover childless adults on waivers that expire on a rolling basis over the next three years.
Arizona’s expansion, which was approved in a referendum in 2000, initially was financed with proceeds from cigarette taxes and a tobacco lawsuit, but that money became insufficient in 2004. The state’s general fund has been making up the difference ever since. Eliminating the coverage would save $541 million, closing nearly half of Arizona’s budget gap for the coming year.
They enacted this thing thinking it wouldn't hit the general fund, and then (much like the alt fuels fiasco) it sounds like it blew up in their faces.