I didn't miss out but only had 1 day at 1,000 to multiply. Like you though if they don't do another TC multiplier day it might be hard for me to reach Diamond, let alone Diamond Plus. With only one player and probably less visits that goal might be difficult. But really for me it doesn't matter. The only benefit is a free room and access to the DL. I can do without that and just enjoy my time pushing buttons and hopefully playing with Jokers.