It's different if you live in the Beltway, attend the same cocktail parties as the federal judge you're lying to, and have children who attend the same private schools.
I presume FISA courts are in D.C., so I suppose this could be true. But judges, ADAs, Federal justice employees live in, and work closely together in, hundreds of localities across the USA. No ADA/Agent in any of them ever have stories that start with "A judge found out I (even sorta kinda) lied" that ended well for everyone involved.
In the public courts, DoJ lies with impunity. It's very difficult for defendants to escape with their freedom; holding federal prosecutors responsible for their misdeeds is the last thing on their minds.
In the FISA courts, DoJ lies with impunity. The judges occasionally throw a warrant back and tell them to try harder, but mostly DGAF, because no publicity. Now there is publicity, and suddenly a judge cares...
I am an anarchist, so I oppose all arbitrary authority. If burning will solve these problems, then let's burn. If not, let's do something else.