Earlier quoted context omitted.
The article says otherwise. It says that many concerns were disregarded during that time.
The article is just his author view. Please read the emacs mailing list threads to get the full picture. GP is correct, and this is quite normal: some people using Emacs master will not follow all the mailing list discussions and commits. So they will notice a change only after it is merged. Nothing wrong with this, and nothing wrong with being unhappy about such a change. What's wrong in my book is the nature of the…
Some people only pick up releases, including test releases.
Some people only work with final releases.
All those people could find something suddenly not working well.