FYI check out this 1969 congressional hearing [1], especially as compared to hearings today.
First - this is the kind of thing that's typically handled and driven by 'the legal department'. They think differently, act differently, for non obvious reasons.
Second - 'fighting' is a form of aggression no doubt and suggest most people avoid that and confrontation esp. people like Rogers. I can see him rationalizing it's just not worth the effort, I mean, it depends a lot on the proportionality of the situation. Was someone handing out leaflets in 'nowhere USA'? Or was there a National Convention?
I cans see Rogers wanting to do something like wanting to call them and talk to them, and his lawyers saying 'no, that's not how it works, better to send them a firm letter from a reputable law firm, we'll take care of it' etc..