I just woke up and just read it so I may not be as constructive as I could
The review isn't bad, it hits the points it needs to while talking about an experience, I think you also got the process of creating this type of game pretty well even though that isn't the point of the article.
As for my experience with c2, it's simple, yet powerful, but somehow lacks key features and has other features not that crucial, which can be a pain, good thing the community fills the holes, and even tho I don't use 3rd party plugins in most cases (because I'm not looking to make money so I can learn anything that can be done and it's clunky to use them in c2), in c3 the situation should get better.
However the community is full of non professional people just looking to make games, with in the past some money milking people that I can't call professionals either (talking about people admitting they were making trash for money), what that means is that c2 was a niche engine and if it continues it can be the same for c3, but that could change if C3 doesn't hold back as much as C2 on some parts for bigger games, or if third party plugs are easy to buy and use and maintain, otherwise community is really helpful (except for the trolls but you gotta have those).
I hope I wasn't too sleepy and that this post made sense