Bad balancing is something apparent in every MMO. GW2 lack of a trinity does not mean it escapes from this. Mesmers, guardians, and warriors are better suited and more useful in fractals than rangers, this is because of class balance. It's at this point, nerfs and buffs start pouring in and FOTM start occuring, if not already.
Maybe a timer would have been better suited? Also found a bug, was in SE, dieing in lava will cause your character to be in combat even though they are dead.
#4 on the focus also pulls mobs without aggro, extremely handy in some situations, and in the hands of a good player can pull just 1 or 2 mobs away from a pack.
Here's a cool idea for a drinking game! For every post about how surprising or how Gw2 shouldn't be number 1 because of the number of bugs and recent updates, take a shot.