Yes, you can't combine libraries compiled for 2.10 and 2.8. No one disputes this. Yes, this is a problem. How much will vary from project to project. However,

Yes, you can't combine libraries compiled for 2.10 and 2.8. No one disputes this. Yes, this is a problem. How much will vary from project to project. However, while you may think that binary compatibility is 'laughable', to imply that there have been no improvements in this area is disingenuous. The presence of this compatibility contradicts the claims you made in the article. You also gloss over source compatibility. Which, again, contradicts the claims you made in the article.