Some people will not like this, but it needs to be said.
World Boss combat is currently way too easy, there is no skill or real strategy involved, you just grab as many players as possible and if you have a couple of tanks/healers you smash it.
The whole point of World Bosses was to be a challenge, to test players skill levels etc. They were tested internally and balanced to be challenging to a group of 10 players. (HCS stated these facts on the forum).
If a group of 30 players could go and run TR would we find that acceptable? No, it would be silly, just like the World Boss runs currently are.
I suggest we limit the amount of players that can enter the World Boss area to 10 players (2 full groups), just like there is a limit of 5 for instance runs.
Just to clarify... the intention of World Bosses was to be a challenge for players of above average skill level, they were not meant to be killable easily by every player in the game. Due to this fact, World Bosses are kinda broken!
Currently anyone can turn up at a World Boss in a huge group, die ten times, play their trumpet, do a little dance, die ten more times and still be rewarded. That is stupid right?