You see the little ex farm is farm for the obvious reason - to farm.
The learning and training parties are for the obvious reason - to learn and train.
Person who can't farm the content, killing it few times an hour, has to business in farm parties. They are supposed to wipe for dozen and dozens of hours in learning parties to learn the fight enough to join the farm parties.
Unfortunately due to the carrying a lot of players without the bonus have no business in farms either...
Everything would be much easier if players were not selfish bullfrogs and just honestly followed the purpose of parties in PF. We would have much better clear rates that way.