Real Response:
It's not so much a system as a "we're really not going to enforce this deadline for most people." It's not much of a system, it's more of a "we'll look the other way for some amount of time".
Snark Response:
The Obama administration built a system for buying health insurance, and here we are... Presumably this system will work better?
Except they didn't, as we usually view ecommerce sites. It sends (often erroneous) signup info to insurers, and it's between you and them to arrange payment.
Snark Response: The Obama administration built a system for buying health insurance, and here we are... Presumably this system will work better?