I have been part of panel for cookoff and on basis of that I can comment a bit here.
Its really tough for editorialist to get editorials ready on time, because at times problems are ready/finalized just hours before contest. In my time, on of the questions was finalized just ~1-2 hours before contest and there was nothing available except setters code to write editorial from.
Keeping a deadline hence, adds a high amount of stress to the job. So editorials for all 6 problem may not be ready immediately, but I support that at least the ready ones should be immediately moved to discuss.