¯\_(ツ)_/¯

any factoring you do on the front end you can do on the back end too, there's nothing magic about it and you don't need different end points: that can be a query parameter or whatever (if it's even a request, in most hypermedia-based apps you'd just render what you need when you need it inline with a larger request)

it's a different way of organizing things, but there are plenty of tools for organizing hypermedia on the server well, you just need to learn and use them