It just seems unfair that a vaxxed person should have to use their own time if asymptomatic (though I guess that may have not been a need to test in the first place if that is the case).
What its likely going to result in is people with mild cold/allergy like symptoms either not testing or not reporting positive tests, and going to work. And people who happen to test positive with no symptoms going to work too. Seems like a bad business decision to take the chance of putting down your whole work force, but wouldn't be the first time a company chased short term dollars at the cost of long term losses.