I understand why as well as the vigilance in reminding everyone about the requirement. The only source of frustration for me is the mask requirement. All of the beverage servers were attentive and can't be everywhere at once.
The casino is well maintained, the security folks do their job w/o being intrusive. We ate at the daily grind and really enjoyed two of our servers (Tina & Dina). The staff in all areas were polite, helpful, and really had the people skills nailed. You can't do better than the lodging, food, and casino experience.
We just completed a two night stay and it is one of our favorite destinations.