Well, there was supposed to be a door chime for the R211 back when it was mocked up at 34th Street-Hudson Yards in Late 2017. It was replaced by the R143/R160/R179 door chime when it was leaked on YouTube.
Perhaps you should blame the Cypress-Crescent curve on the / line. I don't know about the 's sharp curves tho', but I feel like we need to improve them both to gain back the 75-Footers.