We would lose the ability to define a normal `get()` method if for non-progressive requests, if we needed to avoid using the specific handling we do for progressive requests. That might not end up being an issue, as it's possible to emulate the behavior through the `handle_noprogressive()` method, but it breaks the "normal" Django workflow quite a bit.

If we end up not needing it, I'll transform the handler, it should be a simple change.