I agree event plotting being posted a bit earlier would be key to solving the problem. Maybe not every months, but on months when stuff that has severe ramification to the game plot and the setting happens. The timing is especially unfortunate as I know a lot of people on my timeline are on hiatus or slowatus due to September being a generally busy month for everyone.

Another thing that could help is maybe better advertising of the severe consequences character involvement will have in the events? I didn't imagine the missions failing could have that dire consequences. Maybe some flashy red text that says "it's important" or something.