All diagrams looked like:
All companies very successful? Well, nice - but boring. The 2x2 system is more interesting when it used to illustrate differences, tensions and how the companies really differ. "All companies doing well" is nice. But not very useful.
I suggest that if you want to use 2x2 system in you should work with the scale so that differentiators are clearly seen. Then you could see how they differ and what they could do to change.
Here I just rescaled the first picture. And in my opinion much more interesting. I now see that two companies are in the top left quadrant. Wonder what they can do about that? And how about those two companies in bottom left? What should they do?
2x2 boxes can be useful to illustrate differences. And it is the differentiators and differences that can create a movement between the boxes. It is the visible and categorized differences that will trigger most thinking.
Make sure you use a scale so that differences gets visible. And exciting!