FISA is irrelevant to Jessie Lius action. This is just concerning leaking to the press in 2016, from the IG report.
A further IG report is coming on FISA.
when fisa is up to bat that is another thing they will look at, fraud on the court, perjury, defrauding the government violation of civil rights under color of law etc. prosecutors will look at the evidence and making charging decisions.