right now LB is pretty useless and not usefull like you try to bring it because in 70% of the cases people activate LB too soon, they use the wrong LB or waste it on a mob instead of the boss. Only in 30% of the cases LB gets used correctly.
I find it wrong that a 8 player party gets to see their LB get wasted because the random player they happened to end up with is too ignorant a bout how the system works (or too selfish) to care or understand how they should be used.
On that end I think it wouldn't be wrong if SE made it the way it was supposed to be. So EVERYONE gets to contribute and EVERYONE except for yourself is allowed to ruin theirs without completely wasting the entire teams chances.