In a perfect world, perhaps things would work this way.
However, it is not a perfect world, it is open raiding. Loot rules will not be changed to favor certain individuals over others.
The only exceptions to this rule are CoA blagflags which are required to loot anything in the zone. I will call those AFTER all loot on a mob is done, because I feel that those who took the time to flag shouldnt get burned by someone who is in coa for the first time. The other exception is yar lir eyes, which I cant completely enforce . . but its stupid to roll on an eye that you simply will not use because your guild does not kill Vishimtar. 1.5/2.0 are so simple to complete now, and are doable in their entirety by anyone with a CoA flag (in order to loot orb) that there is no reason as far as I can see that any fully flagged coa person shouldnt roll on the orb. Its not as if they are missing a flag or key at that point preventing them from doing it . . and who knows? winning that may very well be the motivation some people need to work on their 2.0s.
Freeland DOES do 2.0 fights as the number of people needing fights done hits a certain point .. so theres no reason an epic cant be completed.