I agree the forced isolation is a dogs breakfast, but the other option is your workforce all gets sick at once. Maybe that's ok as it gets it over and done with, but how long does each one stay sick, and 'what ifs' the length of a piece of string. I'm hearing a lot of people taking sick leave from being worked off their feet due to shortages in various workplaces, which will only add to the problems.
The problems in construction are ridiculous, with numerous trades from different companies all working in confined spaces, it only takes one idiot to come to work sick and a schedule for several worksites and multiple companies is sent backwards a week or two.