With Kaep calling the plays from his outfitted headset mic?
I'm guessing the league would say NO -- against the rules.
But effective communication is the key to victory in any war and if Clink can effectively eff that up -- we should be able to counter with technology.
And plus that place was deafening noise cancelling would be beneficial to one's health. I wouldn't be surprised if players start to sue the league for hearing loss later down the line.