I'm completely biased obviously, but I feel like this article's author has a lot of experience building WordPress sites but hasn't had the experience of building a site in OctoberCMS yet.

OctoberCMS is an incredibly powerful yet simple tool that can handle all manner of websites. I've built everything from your basic web brochure type sites to complicated web applications that are used for a wide variety of functionality to multi-tenant SaaS type offerings.

I recommend just trying it out for yourself and playing around with it. See https://drive.google.com/open?id=1KRj0LAnbC-Fgl392-Hz0MnJgih... if you would like a developer's introduction to the platform.