I have to agree with this. There is just so much unnecessary stuff going on in modern webpages. All too often I see relatively simple webpages with jQuery/Angular/React/Bootstrap/Telerik and numerous other libraries references in the header.

I started web development in the 90s where small size and high speed were key. I try to do the same now. I'll only use jQuery where possible, but if I do use a framework/library it will be to prototype something or to get something completed as I am under time constraints. If I get a chance I'll port it all over to plain JavaScript.

Modern webpages are just too big.