What they’re saying is that trying to reverse climate change won’t be enough. It doesn’t mean it isn’t the right path, just that it won’t go far enough.

One of the greatest advantages of the totalitarian elites of the twenties and thirties was to turn any statement of fact into a question of motive. – Hannah Arendt

Because it won’t work? That’s what I got from the article. I’m not sure what else you’re implying.