Have you also scanned earlier work of the author with pangram to establish a baseline? Pangram is not without problems.
It is actually pretty much without problems. It doesn't catch everything, but if it detects something it's very rarely a false positive.
Can you give some examples of verifiable pangram false positives?
It is actually pretty much without problems. It doesn't catch everything, but if it detects something it's very rarely a false positive.