Absolute BS! The federal government has never been given the power to regulate any insurance let alone require its use. Therefore, it has authority to implement any "replacement" for the unconstitutional Obamacare.
The only true action the federal government can take with regards to Obamacare is to repeal it. Then it's up to the states and the market to sort out the mess that Congress made, Usurper Obama signed, and the Supreme Court upheld.
Following repeal without replacement, the next order of Congressional business should be to impeach, convict, and remove every federal jurist who upheld this unconstitutional act hiding under color of law.
Only Congress can make or change laws. The Fed Gov cannot despite Obama, who usurped power and made exec orders he never had the authority to make.