I have no idea why businesses think that it's a good idea to let third-party sites control their primary website pages. I have written at length here about this issue >> https://www.linkedin.com/pulse/basecamp-moved-blog-medium-yo...

The point is, everyone is moving to medium because they have great UX plus they already have an in0built audience. But what happens when they have to start making money? We all know what happened to Facebook pages.