In short, we aren’t on track to an apocalyptic extinction, and the new head is concerned that rhetoric that we are is making people apathetic and paralyzes them from making beneficial actions.
He makes it clear too that this doesn’t mean things are perfectly fine. The world is becoming and will be more dangerous with respect to climate. We’re going to still have serious problems to deal with. The problems just aren’t insurmountable and extinction level.
The problem is that we are talking too little about actually quantifying this. You make pretty bold statements that sound good, but that contain not much we can use to guide policy decisions. And that matters.
How much will we suffer? For how long? How much will the climate impacts cost, how much adaptation measures, how much will avoidance cost? In terms of money, human lives and living conditions. Who is impacted? We have to put numbers if we want to find an optimum solution.