Under the circumstances, shouldn't we demanding that the executive branch do a bit more than getting the main idea correct? Isn't it newsworthy when the president, in probably the single most important press event of his administration, got "all the details wrong as usual"?

Isn't that... "bad"? So why is it "fishing" to report "Trump bad" in this context?

This is bad. It's BAD. We have a clearly incompetent administration trying to coordinate the response to the worse disease outbreak in 102 years. And shouldn't the media be able to say that when it's true?