Hmmmm, I'm a little torn here. But as a father of a child with asthma, these days where the "fine particulate matter" combined with "no winds" CAN be scary. And since this is a one day ban confined to the affected counties where they expect the problem to be...I don't see a problem with it. You gotta remember it's not just smoke in the air, but the smoke is the one thing that can be controlled.
Yes, it's a little like second hand smoke, but you can't get away from it. You go inside and keep the place closed up. We have a fairly expensive HEPA air filter to run if necessary. It doesn't completely clear everything up, but it does help. For me, it's many hours of sitting and watching him to see if he's gonna have a problem.
Even here in little 'ol Des Moines, Iowa we have a 365 day burn ban in effect for outdoor fires unless it's for cooking. I've only witnessed a handful of these days in Iowa, but remember them quite frequently when I lived in Denver, CO.