I think the gist of the article is that is a hotel did allow smoking 20-30 years ago, the workers can sue for hazardous conditions. It will help balance out the greedy hotel owners and their poor workers.
About 10 years ago we were in Michigan driving around sightseeing. It was getting dark and beginning to snow.
We stopped at a motel, only one empty room and 5 people wanting it. It was a smoking room and we were #5 on the list. One by one the people checked out the smoking room said “no thanks” and left.
We didn't take the room either the stink was awful!
True story.