We might see a combination of both. The biggest CMS of one of the biggest languages is moving away from the approach you call hypermedia by implementing a JS-b

We might see a combination of both. The biggest CMS of one of the biggest languages is moving away from the approach you call hypermedia by implementing a JS-based editor and REST apis. Effectively they are building a headless version on top of their legacy platform, which can be used like a JavaScript stack. This can be used as an argument for the hypermedia approach: "Let's just use this thing for now, we can always implement our SPA inside it later, if we need to."