Earlier quoted context omitted.
It most certainly is actionable advice, but it's usefulness depends on how well you take blunt advice.
Unhelpful advice. Typical programmer up his own ass bullshit really. Oh that ways not good. Well what's good? I don't know, just not that. Look at how many clowns criticize jQuery these days as an example of garbage software.
Trying to make web applications with it is another story though. The lack of any state management is a nightmare, hence declarative frameworks/libraries such as React/Angular(JS)/Vue/Svelte etc. etc. came along.