The law is so stupid the more I think of it.
If anything, if they were trying to push it and dont want to make it all workers, I'd say push it to service oriented businesses and ones that are LESS than 100 people. Smaller businesses will likely be more service/people oriented, while lots of large companies have tons of office and plant workers who dont interact much with the public.
And large companies already will have tons of new covid standards, WFH schedules, all kinds of renovated offices, hand sanitizer etc... My company even installed temperature check lasers. And if it shows you got a fever or whatever crap the sensor doesn't like, you cant even get past the main lobby. Large companies also have better health care benefits too. So even if someone does get sick, the employee is probably covered.
Small companies wont be as rigourous. And there's no way a lot of those sketchy shops do anything about covid. On a daily basis they cant even keep their shop floor or bathrooms clean to begin with. And if someone gets sick, good luck having great coverage or finding replacements workers. Large companies can absorb hits, small companies cant. So IMO it's more important for small fry companies to mandate first (if this law was going to get pushed through).