Not really, iOS didn't really have the capability of scanning and reporting files based on a database received by the FBI/other agencies.
There is a big difference when this has been implemented & deployed to devices. Fighting questionable subpoenas and stuff becomes easier when you don't have the capability.
Given iOS being totally proprietary on a heavily locked down device making inspecting even the binary blobs complicated, how can anyone can be sure what it is doing ? Not to mention any such capability missing now is just one upgrade away from being added with no ability for the user to inspect and reject it.
There is a big difference when this has been implemented & deployed to devices. Fighting questionable subpoenas and stuff becomes easier when you don't have the capability.