I know it's training however I think you talk too much.
"Tackler away, awAY, AWAY!!!" - why not just say "roll" same outcome hopefully.
"PLAY!" - why do you need to say this? The players know what to do.
"Hands off, that's a ruck" From the video no hands seemed on the ball.
At the end of the day if you treat a training session like a game then the players will respond and get more out of the session.
+1
You seemed to have the habit of commentating the breakdown, or reminding them what to do at every single breakdown (I'm guilty of this too:redface:.). This is probably fine at juniors but I think that's unnecessary at adults level. Only talk when you see something not happen (or about to happen). They should know what to do. Your verbals pretty much became white noise. If you're verbalising for the sake of helping remind yourself the transitions or your checklist through the phases, then fine, but I'd say it quietly and not bark it out. At training is the perfect time to practice saying nothing (if nothing else then to see what happens when you say nothing and how the players self manage - or not).
Again, I know it's training, so you probably took a few shortcuts to keep things flowing for the players/coaches and didnt want to be too over officious and look like the general but I'd manage the first lineout more to set your standards. I may have been fooled by the wide camera angle lens (typical of gopro). Stay at the front. Set the gap as you want it (and tell the front two to manage that size gap from then on). I noticed that you moved to the back before one team had set, you asked the players to give you/keep a gap, and what did they do? Nothing! The gap looked too narrow. Blow it up and get them to give the gap you're expecting/wanting (ie by then you seemed to have become white noise). The result was that the 2nd line out had barely a gap. No surprises that even the long throw went astray.
Ps. Scrum cadence looked rather quick! But perhaps that's the new speed now with the CBSY9, which we are yet to experience down here!