The thing about Dorothy Loudon (or Jane Connell, whom I saw on the road) is that her style is eccentric and yes, she can be over-the-top, but there was always an underlying truth to her reactions. That's what made them all the funnier.
It doesn't remotely imply a "serious" take on the role, or that by finding truth in the situation, you've chosen not to be funny. It just means you're not going for tacked-on schtick, merely for the sake of getting a laugh, with no real connection to what's going on.
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22