Dismissing the complaint that the author might be inaccurate or not as trustworthy as otherwise as simply the genetic fallacy is an instance of the fallacy fall

Dismissing the complaint that the author might be inaccurate or not as trustworthy as otherwise as simply the genetic fallacy is an instance of the fallacy fallacy, isn't it? Consider a poor news source such as the Daily Mail - I'd say it's justified to at least be more skeptical of the claims presented in any given Daily Mail article based on their history.