At my current job we primarily use Wordpress. Why Wordpress? Because we have a large and non-technical content team, 260+ websites and several tens of thousands of pages of content that need to go up quickly.
We're just 4 developers - about 1 for every 8 content & marketing people we have. We spend very little of our time on frontend. Tell me that you're going to get that kind of leverage with another tool.
Wordpress is just about the last thing that you would pick as a developer or ops person to base your tech stack, but in our case it is the right choice.
Aside: Coming from Rails and having spent six months deep in Wordpress core, it's actually kind of awesome. Seemingly every problem is solvable.