Submitting a title in "sentence" form is explicitly for those cases. Also, "NASA" is on the list of allowed all caps words so should not be modified by the formatter.

If the title is formatted as a sentence, and some words are proper nouns, the extension will know not to force those to be lower case if someone chooses the sentence case option. If everyone submitted titles as "Title Case", then the extension would not know which words to leave with a capital and which not to for those that prefer sentence-like casing.

I think what you're looking for is a separate formatting option for original titles and submitted titles, which at the moment is not an option implemented