I've seen no calls on that takedown many a time and seen that called a takedown. It didn't look like he was improving his position either that didn't help his cause.
And on the no-call on the takedown in the first period. IMO, Steiber met the criteria for a takedown for a brief second with his hand hitting the mat proceeding with Oliver Hip heisting to his feet, but they both came up on their feet with Steiber in control behind Oliver. Steiber did control him beyond reaction time. I don't think the rules interpretations require him to keep supporting points on mat for a certain amount of time. I refereed 8 years, and recall at rules meeting to call this a takedown.
I'm surprised Steiber let him get that close at the end of the match. He should of ran around the mat as he didn't have a stalling warning. Steiber looked like the better wrestler through the match.