Assuming all dicts are ordered, there will be no need for this (as long as the parser preserves order) so I am okay with dropping this.

One of the main use cases I have for wanting nice literals is when I am working on tests. I find it very nice to be able to write out the expected results in a clear way. While the app code might not be using the literals, it improves the readability of the tests, which make it easier to see that the test is correct.