Critics also point to the greater purpose of Obamacare which was to to get health insurance for 48 million uninsured people. They say that most of the 7 million sign-ups already had health insurance or medicaide.
Another point that should be noted is that Obama is taking credit for getting people insurance simply by expanding the eligibility for medicaide. They really didn't need to pass Obamacare for that. They could have just passed a bill expanding medicaid. Simply giving out more free health insurance paid for by the taxpayer. This raises concerns about cost and disincentive for people to better themselves so they can provide for themself.
It should also be noted that the sign-up deadline has been extended two weeks. All website users need to do is check a box on the site saying that they tried to sign up but weren't able to complete the application.