Previously, by the wording of the DCMA, Apple could of sued the dev team and/or you for bypassing copyright protection. This is the same law/act (DCMA) that prevents you from utilizing your fair use/back up rights.
The government merely said that taking that option is no longer available to Apple.
It did not require Apple to service such devices under it's warranty, which would be outside the scope of the government's proper reach anyway.