I suspect he's got much reason to "dread".
Schiff’s whinge is that Barr might be on a witch hunt. A predictable stand to take, as any criticism, let alone prosecution of the FBI action in framing Trump, is not based in law.
It’s the usual lies pedaled as “rule of law.” The press will sell it that way too. See the so-called whistleblower/impeachment. Anybody who looked at the law figured out that none of what went down was according to the rule of law. And a thinking person didn’t even have to look at the ICIG statute to get the point that the Intelligence Community does not have oversight of the Oval Office.