I see both ways on the issue of scene disruption. Sometimes a scene should be disrupted because there’s a story reason to do so and it absolutely makes sense to Aragorn those doors open and smash your way in to what’s going on for drama and impact, and other times, I’m officiating a three-legged race for silly prizes and someone has shown up to be very angry at me because my planned event scene that has been calendared for weeks tonally clashes with a GMed emit from two hours ago where someone died.
I think it can absolutely be fun to do tabletalk about a large event scene, I do think that speaking in low voices about what is happening in the broader scene can have value and develop story in and of its own right, and I don’t want to either spam the main scene with my amazing jokes OR feel compelled to try and throw a grenade in order to disrupt the flow of what’s going on. I’ve had a lot of fun playing a smaller scene inside a larger scene! I would have been super self-conscious being on my bullshit in front of all 50 people that were in the room as opposed to the 7 who were at my bench!