They didn’t identify it? Or they are claiming it’s not present? Those are two wildly different claims. Presumably if both labs did their documentation correctly

They didn’t identify it? Or they are claiming it’s not present? Those are two wildly different claims. Presumably if both labs did their documentation correctly, it should be easy to compare hashes and see whether they examined different filesystems, which would be a prerequisite for any claim that the malware was added at some point following the initial government custody chain.