Autodesk Consolodates Mac Architecture Market -- Really?

This headline caught my eye for its strangeness:

Mac architecture market consolidates

I found it on a Web site called MacNn, which runs this as its lead sentence:

Autodesk has acquired the assets of Green Building Studio, further consolidating the market for Mac-based architecture software.

The Mac angle is this: GBS has a link to Graphisoft, which has a version that runs on Macs. Commenters figure that Autodesk will cut off the Graphisoft link, and eliminate the Mac version of the software -- all false speculation, since Autodesk states that the Graphisoft version will be running again: "ArchiCAD add-on is temporarily unavailable while we are making updates to our new servers." 

But how MacNn gets from "Autodesk acquires GBS" to "Mac architecture market consolidates" is beyond me.