Hmm some good points in their but...

Not sure why you would be in different zones if you were in a party unless you were just using it for talking. Does it ruin your gameplay if people do this? You would never know if they have a buff unless your in the party with them.

As for me i could care less about the buff. we get 4 people cool, 8 i'm good with that also. What others do i couldn't care less. Maybe later SE might tweak it a bit but not now. They have to much other items their Designing and trying to fix.