I like the repeat set rule, the downside is that you don't get the metres from a kick to the touchline, but the upside is that the defence don't get the chance to reset their line. Another plus point is it keeps the game flowing and the ball is in play even more.
I also feel you might have more chance of getting a repeat set, as before the ref might have been reluctant to give the penalty for small ruck infringements. Maybe in time though the repeat sets will be lower as players will be squeaky clean at the ruck.
Crowd noise is clever to have as it was rather eerie without, and definitely harder to watch you don't realise how much crowd noise helps. An example was All Elite Wrestling had wrestlers as the crowd to provide a bit of noise, which I thought was clever. Then I saw a bit of WWE with just the commentators and it was very flat.
Over here it would need to be adjusted accordingly, so for Saints it would be constant shouts of 'Forward!'.
