This is going to take away the fun gamers get from those casinos and also jobs of workers of these casinos.
There are plenty of online casinos who will be willing to hire those experienced professionals.
Especially since the gamblers will probably migrate to online from those as well - more workforce will be needed.
That's a lot of jobs lost either way. Even though online casinos can benefit from the skilled professionals that land-based casinos laid off, they still need a small workforce to operate. Some might be used as live dealers, and a few in technology, finance, and customer service; the rest will remain unemployed.
Offline casinos are rapidly becoming a thing of the past.
Perhaps if they focus on hotels, cruise ships, and gambling tourism, I think they will still attract a specific, nostalgic audience.