No, that is not a case of MODERN usage. As already stated in the article large numbers (incidentally mostly rounded) WERE expressed in RN (in various ways hardly constituting any kind of standard) in ancient and medieval times. Modern reproduction of ancient or medieval text that includes representation "large" Roman Numerals is obviously another matter - since this is done NOT by applying a (hypothetical) "modern" standard but by literally transcribing the VERY non-standard medieval text. If you are not at present able to directly edit this protected article - what about regaling us with your suggested version of this section - on the talk page ?
Incidentally, I have already changed "purely hypothetical" to "largely hypothetical". --Soundofmusicals (talk) 01:19, 11 January 2023 (UTC)
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