This.
The bolster is useful, and actually does allow competition. But, the 50's have many more points in their talent trees, as well as the full complement of skills(which, courtesy of the talent trees, are often more effective/on shorter cooldowns etc).
They are not, however, unbeatable. And the key to winning isn't even having groups on Vent(though that is useful). I've even been on the winning side in a WZ where 2 players dinged 11 at the end - TBH, I can't say why that one was won(I'm guessing either the Imp players were laughing at us too much, or were just making bad decisions), but it's not all about levels.
As things stand, guys, queue up, join in, and for the love of all that's holy, SOMEONE TAKE CHARGE, and call for help when you need it. Sure, winning is better than losing, but you won't learn by sitting out, and you won't win unless you play.