You should be fine for a week, especially if you do like they said. I don’t use PDZ so I’ll ask the ones that do, do you contain the PDZ with something to keep them from scratching it off the droppings board or do you use a flat board with no raised edges?
To me the main problem with droppings is that they smell when they get wet. As long as they don’t smell I don’t have a problem with them. They might get wet because it is rainy and the air is so moist they just don’t dry out well. Or if you have a high concentration of chickens in a small area, the droppings can get so thick they just don’t dry out.
The second problem is that I want the droppings in my compost instead of in the bedding in the coop. I can go a lot longer without cleaning the bedding out of the coop if most of the night-time droppings go in the compost. I generally clean out the bedding in my coop floor once every three to four years, not because I need to but because I want that stuff on my garden. My coop is 8’ x 12’ and it stays really dry. A smaller coop or one that gets wet would probably need to be cleaned out more often.
My main laying/breeding flock is normally 7 hens and one rooster, thought there are times I have a lot more chickens in the coop as I grow them out and evaluate the pullets for laying to see which ones I keep. My droppings board is a sheet of plywood over a 3’ x 6’ built-in brooder. I do not put shavings, PDZ, or anything else on that plywood though I did paint it a long time ago. With more than eight full sized chickens I can go anywhere from one week to over three weeks without scraping it. A big factor in that is how wet it is outside so it can dry.
I’m confident you will do a lot more in this than I do and I don’t have problems. Don’t worry about this at all. You will be fine.