The followup post (https://www.linkedin.com/pulse/defence-international-energy-...) explains that this IEA outlook is not really supposed to be a forecast, it's an explanation of what would happen if all current government policies remained the same. It intentionally does not take into account proposed or predicted future policy changes.
Some of this is still driven by government policy (definitely required to kick start things), but at this stage economic drivers are the dominant force affecting adoption.
They’re not being malicious, people just like misrepresenting what that data represents because hur hur look at the dumb green hippies. https://news.ycombinator.com/item?id=38668665
The point of my posting the chart was not to crap on the IEA but to just to show how meteoric recent progress has been. I have to be honest, however, that the "defense" you cite is not very strong. It's basically an admission that the model was obviously bad pre-2020 and had to be repaired.