reveal detailed information showing that the bureau withheld exculpatory information

The exculpatory information will NOT be in the FISA itself.

It is only going to show that Ohr (probably identified as some unidentified informant) was providing information from an overseas source with close ties to the Putin (Deripaska, through Steele).

The lie only becomes apparent when you know Ohr was the source from revealed 302 dates and the Ohr-Steele texts.

The recent NYTimes article is CYA for the fact Ohr WAS developing Deripaska as a source through Steele.