While this is a very personal opinion, the main problems that I have with Angular are only increased with newer versions. I used to really like Angular 1.x, from there on, the required amount of scaffolding etc has only increased.
I'm sure you can however find someone who feels just the opposite way.
All in all I don't think this affects the results too much though. For example Vue is also in one big bucket with 1.x still being a thing. Angular isn't the only one who's had a fair share of changes over time.
It doesn’t conflate angular and angularjs at all - there is explicit mention of both of them and the differences.
So where are the charts showing the difference between AngularJS and Angular adoption?
I used Angular 5 on two projects last year and was quite happy with the experience.