“The way you are summarizing it here is not quite correct. Google never targeted the global AEC industry. SketchUp was initially designed for designers to help visualizing their ideas by a small company called @last. Google bought it because SketchUp's user interface is very intuitive. Even amateurs were able to pick it up in no time. That is what Google was after: they needed amateurs to contribute 3D models to one of their major projects at that time: Google Earth.
As technology has improved over the years, Google is now able to generate it's 3D models via 3D image capturing, which made SketchUp obsolete for them. That is why they sold it on to Trimble.
Sketchup Pro was more of a side business for Google to maintain it's already established professional user base they inherited from @last.
But claiming that Google once "enthusiastically targeting the global AEC industry" is not right.”