I have just recently worked with frames, and (after fixing the streaming issues) I was able to just edit a frame (ok, I only do certain edits) and I don't even need to touch the forms (or frames that nest the edited frame), and yet the compiled exe has all the changes.
So there are large parts that (nearly) work. I would not want to make them less reachable by hiding them behind some RO that then needs to be turned off to get the full experience.
That sounds great, and probably fixes most of the problems that people have had in the past :-)
To clarify: "fixing the streaming issues" => I did not fix any of the code causing them. I fixed my local lfm files after they were generated, and was then able to work with them.
The code still needs fixing, unfortunately.