Here's the same 11.8 million baseline from Farrah's data that you referenced and it still results in 6 million newly insured people over the first 2 years of the ACA (
link):
Unlike other studies that rely on survey data, Haislmaier and Gonshorowski base their analyses of private health coverage on a Mark Farrah Associates (MFA) dataset. The MFA data are derived from insurer regulatory filings compiled by the National Association of Insurance Commissioners. For self-insured plans administered by insurers, MFA supplements information from insurer regulatory filings with other public and private sources, including filings with the Securities and Exchange Commission.25 For Medicaid and CHIP enrollment, the authors use figures from CMS state-level monthly enrollment reports. Since CMS did not include enrollment data for December 2013, the authors use figures from the Kaiser Commission on Medicaid and the Uninsured for their baseline estimates.26 The results are reported in table 5. The study finds that the number of people with individual coverage grew by nearly 5.9 million people over the first two years of full ACA implementation. At the end of 2015, 17.7 million people had such coverage, a 50 percent increase over the 11.8 million people who had nongroup coverage in December 2013.
I'm just going to ignore your second, obviously wrong, statement.