In other words, right now if a human wants to DELETE a widget, the human has click on an HTML form to `POST /widgets/123/delete`, or use some other workaround like smuggling a special `_method=DELETE` variable. This is unnatural and semantically incorrect, resulting in ugly hacks that break HTTP-level expectations like idempotency; and it also requires additional app-level logic to process.
Meanwhile a machine is allowed to simply `DELETE /widgets/123` because their interface to HTTP is not clicking on HTML forms.
We humans could converse with websites in semantically correct HTTP, have clean URLs in which both REST APIs and human-facing URLs are identical without hacks, and require no extra app/framework logic, if HTML forms simply allowed all (human-relevant) HTTP verbs.
Building the mundane in the absence of JavaScript isn't some small thing you can build. It's going to require you to rebuild your entire site around the idea. Things like a searchable dropdown will now turn a single page form into a horrifying multi page mess where you get sent to a page for just the dropdown and the search box and selectable options, which then send you back to the original form. That is going to require you to store a lot of the form data on the server to keep track of what you entered across pages rather than let the browser do its thing.
The noscript crowd should have lobbied for a better HTML instead of rallying against JavaScript.