I think that someone missed the news that DOJ has pretty much said the all the FISA court investigations of Trump campaign are fruit from the poison tree (legal term I think is correct for obtaining warrant by lying to judge)
So far, DOJ has admitted that some of the fisa renewals were invalid, not all. Barr and company can see redacted parts of the fisa applications that we are not allowed to see. But the fact that some of them are bogus is a big deal. MSNBC seems to be suppressing the story but CNN and NBC are covering it.