My favorite thing about this report is on energy modelers (section 2.5). They show the (now famous) graph where large institutions (like the IEA) regularly predict that solar will start to have linear growth rather than exponential due to constraints in our energy system. This is despite every previous forecast that did this being wrong, with the number of new solar installations growing exponetially YoY instead.
What is interesting is that despite these constant misses, the IEA is constantly used as the definitive source for energy modeling across the world.