Yes, what you're saying is why I bring the topic up. One approach could be to break things into a Player Turn and Watcher Turn. So, you guys could all talk amongst yourselves and decide what you're going to do and in what order, then roll the dice. Then it would be my turn, and I'd roll reactions and then my actions, and then it would go back to you guys for your reactions and next set of actions, and so forth.

I think that that should help keep things moving in that we don't necessarily have to wait for individual players if they temporarily disappear. It also would mean that we can double up on rolling last turn's reactions and this turn's actions at the same time. And I think it would avoid the overwhelming majority of wanting to spend plot points or doom off-turn. In fact, when you guys are taking an action to create an asset, you could probably roll the doom dice reaction right along with your action.

There might be occasional need for conditional actions ("If Hercules knocks out Electro, I'll attack the goons, otherwise I'm attacking Electro, too") but I don't think that's too big of an issue.