I think it just comes down to player etiquette.
Having played in two regionals, I make it a habit to ask my opponent after he moves for his action if he does not do so immediately. "Are you going to focus?" "Are you going to push (the limit)?"
When it comes to dials, its simple- I tell my opponent I am committed to my dials. And simply wait for him to say the same.
I think these are questions you need to ask so everyone is clear on the state of the game. If you are hoping that someone is going to forget something, and for yourself to take advantage of it- that's not really playing at your best. You and your opponent should be helping each other to have a good game. If you are tired, then all the more you should be talking to your opponent about the rules and giving each other reminders.
Of course, good etiquette does not mean you give your opponent advice like "I think you should focus" or the like, but prompting them to make decisions.
Everyone agrees that its a premier event, and gameplay should be upheld to the highest, and that should indeed be the case. However, what is equally important is for etiquette to be upheld to that same level.
Win with respect, lose with dignity.