I think I noticed something about this marathon that is different from the December 2023 marathon: this time, rather than airing cut versions of the OPs in Episodes 3-7, they COMPLETELY cut them!
Good discussion! One thing that gets a little lost in the shuffle is that R&MTA and Uzumaki are 2024 shows, while Demon Slayer: Swordsmith Village Arc is a 2023 show. So that might explain why they air earlier?