That stuff happens every year, also the removal of remote drop boxes in certain areas. It's part of the USPS streamlining. It may have added to it, but I think their policy in regards to Covid is the biggest issue.
My local Postmaster told me that if someone comes in contact with a positive person they have to stay home for a week. If they come back to work and it happens again in 2 days, another week off.
How many full time PO employees are only working 5 days a month, lol.