Let's hope that they are delusional and wrong, as they hope they are too. If they aren't, then the last three to six years would be nothing compared to what could materialise at the upper end of the spectrum, and even the better end of the spectrum is pretty terrible. And that the pretty terrible aspect is already baked in, because of the previous two years is very disconcerting.
This is an uncomfortable watch, and you sit there thinking "naaa ya wrong, you're going too far, that won't happen." The problem being you have two expert observers with years of experience telling you stuff you want to be confined to the make-believe of dystopian movies. You decide what you think, and in the future we will have the observation data that will bare out what is said or allow us a look back and think "thank fuck they were wrong."