Do you mean the whole field, so from B2B SPA apps to personal blogs? "If you want to replace jquery, use Vue!" would be more helpful to understand.
The problem is that we don´t know if the advice comes from a "bootcamper" that has only learned Javascript. You know, some people manage to build low-interaction sites that will render a blank page when Javascript is disabled.
The "why" is also of interest to see if the advice is applicable. If not react, then why not preact for instance?
