Yes, I might be misjudging it. But I still have the feeling that Churanoumi thought he had it in the bag but didn't finish the job properly, so perhaps he's the one to blame rather than Bushozan.
Speaking of this, did you watch Shiden - Shirokuma in juryo? In that case, Shiden *clearly* gives up and Shirokuma squats to put his opponent down - on the tawara, so the bout isn't technically over. Luckily Shiden didn't "restart" the bout, he stepped out shortly after.