Always love these threads and I started making lower division highlights with rare kimarite in mind. The Keitenkai kekaeshi is in my day 15 video, and you can find most of the rare kimarite from the lower divisions in that playlist (although I was focusing on throws/leg trips/etc. more than hizawa)
I've been following the frequency of yorikiri vs. oshidashi for a little while, I think this basho was the most oshi dominant in the past couple years. Maybe that has to do with the Yokozuna and the other kyujo?