So you aren't claiming that they said GPT-2 was dangerous in the sense that it could disempower humanity, kill all humans, etc.
You are just claiming that OpenAI execs said that GPT-2 might "generate misleading news articles, impersonate others online, automate the production of abusive or faked content to post on social media, automate the production of spam/phishing content." Then, what is unreasonable or bad about the OpenAI execs saying this in 2019?