Well as I see all depends on the situation in group, if there is a bot or two doing the farming and everyone else just sitting/following afk than yes they are all getting advantage over the bots no matter the excuse they may come like:"but he said to me being afk cause his kinda heart was willing to lvl me up".
But if the group is all active and there is a bot among us (I mean among them 🤪) so they are also farming therefore the beneficion they got with the bot is way lower in front of the risk of being banned.
Maybe GM could check for example, group's ip to find more precise the unfair players, for example same ip city of the bot and the buffer who where doing nothing but following/buffing.
Well, just my point of view of this delicate situation, after all, if we have a rule where just ban the bot and not party's members, we may have a bot feast explored by those players.