It is.
I would change TNG's interpretation of the Prime Directive closer to what I think was the original intent: to prevent cultural interference. We don't land on a planetary surface and pass ourselves off as gods (as Picard fought to prevent on MIntaka), we don't take over the government to make it something more "efficient" (looking at you, John Gill), we don't leave around artifacts that could, say, turn an entire planet into a pastiche of 1920s Chicago.
But we don't use the PD as a reason to let people die from natural disasters, especially if we can help them without their knowledge. The debate in "Pen Pals" veered into the absurd. Our rational heroes invoking "fate" and "destiny" as a reason to let an entire planet of people die? It's ridiculous, and it's cold-blooded. As someone -- Pulaski, I think? -- pointed out, as long as we're talking about destiny, we could just as easily conclude we were destined to save them.