I am a little surprised that SDC is closed every Monday and Tuesday until Dec 21. This seems like a golden opportunity to make up for some of the revenue from missed days this year. Of course they know a lot more than I do about the attendance and employee situation for adding extra days.
Wednesday and Thursday are pretty slow all fall-Christmas, adding 2 more days would mean staffing issues. Right now all staff can work all 5 days they are open for 8 hours and not hit overtime, if they are open 7 days a week then you have to stagger days off for everyone. They seem to already be having an issue with staffing, that would just make it worse.
Your right they are fairly slow on weekdays during a NORMAL year because they can pack 20,000 to 25,000 on any given day, especially weekends. They still have in place max attendance of around 10,000 last I heard.
Could be a staffing problem but without indoor shows it should open up extra staff especially around the Christmas festival. These are different festivals but they just came off Moonlight Madness where they were running 7 days a week, so not like it is a whole new situation for them.
No one has posted about attendance on here lately, so not sure what numbers they are hitting. I am sure they are down quite a bit so maybe everyone is pretty much getting into the park that wants to without adding extra days.