That's not really true. Frameworks enforce patterns on developers (e.g. MVC), and they create a consistent ecosystem within which you can create easily interope

That's not really true. Frameworks enforce patterns on developers (e.g. MVC), and they create a consistent ecosystem within which you can create easily interoperable plugins. The author's point seems to be informed by being burned by many bad frameworks (which is, to be fair, 90% of frameworks - if you pick based upon fashion driven development this is the hole you'll end up in). A good framework is rare but immensely valuable. A bad framework is worse than no framework at all.