Ok, first off, rules are rules. If the person who has access to the land sets rules than the guests need to follow them. If you don't like the rules than find somewhere else that doesn't have any rules.

Secondly, why does the friendship have to end because they don't hunt together?? I have a couple of good friends that do hunt but I won't ask them to hunt with me for various reasons. That doesn't stop us from getting together and hanging out. We even swap hunting stories all the time. If they are both mature adults than they won't let this end their friendship.