It’s like accusing Bob Woodward & Carl Bernstein of not being “balanced” about Nixon when they wrote their Watergate piece. Or accusing the Boston Globe Spotlight team of not being “balanced” about abuse coverups in the Catholic Church. That’s simply not the job of investigative reporting.
Exposes like this always feel “biased” to those invested in the official story, but scrutiny is the entire point of journalism. The Thalidomide scandal, phone hacking, and clerical abuse were all were dismissed as biased reporting until the evidence proved otherwise.
In my experience people usually only dismiss investigative journalism as “biased” when it cuts against their worldview or interests. Journalism is never totally neutral, there would be no value to it if it was, but there is a massive difference between bias and evidence led investigation.
What matters is whether the facts hold up under scrutiny. Rachel Aviv’s New Yorker piece on Lucy Letby isn’t “biased,” it’s literally just journalism doing what journalism does best. She didn’t argue that Letby is innocent. She showed exactly where the prosecution’s case was weak, drawing on court transcripts, medical records, and interviews etc. It’s not “bias” if evidence underpins the conclusions and Aviv brought the receipts. Her sourcing was rigorous (as it always is at The New Yorker, a publication that is world famous for its fact checking process).
This is why no one ever attacks specifics points within the article, they just handwave it as “American interference” or “bias” without engaging with its substance at all.
British justice should be able to withstand questions and scrutiny. If it cannot then we really do have problems.