If I read you correctly, in paragraph one you say if the owner doesn't have a policy on behavior during the NA, then the player shouldn't be fired for that act -- which I assume is some act other that standing for the NA.  Why would the owner release a player if there is no conduct clause in the contract?
Would I support an owner who requires employes to stand for the ludicrous examples you give?  I support right to do so, if that's what he wanted to do -- unless there is a law that prohibits (and I don't know if there is). 
I don't smoke, but I supported restaurant owners who allowed smoking.  I believe it's the owners decision on how they can make the most money running their businesses. They just won't get my money. 
I don't understand what you find so difficult about these concepts.  Hope I helped clear them up.