And it's an increadibly stupid one given what we know of covid now, and that it's still putting people who are at higher risk in the way of serious potential harm
Not to mention it's stupid from a business point of view as it's just going to mean the staff continually get infected and either you end up sacking everyone for being off too often (which is not something you can do in a lot of businesses, and requires expensive hiring/training even "just" for a McDonalds job*), or keep having your productivity go down the drain because you're understaffed/staff are too ill to work properly.
*Even "unskilled" jobs tend to take time for people to learn the ropes and get good at doing them efficiently.