The author complains about developers who "want to show off" and then derides the use of frameworks. But showing off would mean not using off-the-shelf solutions, and instead trying to hand-craft everything.
The author complains about how frameworks bloat the page, but react + react-dom, as of version 16 (the most recent measurement I could quickly Google), weighed in at 109 kb (34.8 kb gzipped). Sure, client-side rendering means you wait for the JS to bootstrap before you get to see content, but React also has good support for doing initial renders server-side.
It feels like the author just spilled out his or her assumptions and prejudices without examining or researching them at all.