From the article:

Nothing ‘normal’ about it A lot of commentary uses the framing of a “new normal,” as if our climate has undergone a step change to a new state. This is deeply misleading and downplays the danger. The unspoken implication of “new normal” is that the change is past and we can adjust to it as we did to the “old normal.”

So it may truly be the new normal, but they don't want you to say that for fear of getting complacent and unwilling to do anything about solving the problem...got it.

I'll have to try that out, thanks.