My team has mixed people but most of them are reasonably experienced. What we find most useful about Angular is that it offers a "right way" to go about things, which removes the necessity for endless discussions about "which architecture is best". When you have a large amount of apps that need to be built and maintained concurrently, having a similiar structure across all projects is very helpful.
I'd be interested to know how many of your large team were not experienced web developers before starting with Angular given that is one of the big criticisms in the article.