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.
People aren’t apathetic because “it’s too late”, it’s because right now is the time humanity needs to act, yet all that’s really happened is governments making promises to act in 10, 15, 20 years time if at all.
Oh, but there are pollution targets… that are routinely unmet, or are met through dodgy use of carbon credits, all with no punishment.