For those who have been living under a rock, there is currently a bug in where Tempests are able to begin the animation for res'ing a team mate with Glyph of Renewal then immediately go into Mist Form making them invulnerable. Thus, guaranteeing the res on the team mate. This bug currently has very few counter plays such as a Power Rev or Tempest CC'ing the body away. That means, skills that are designed to interrupt "key skills" like Glyph are made completely meaningless for situations like this.
If a Tempest is to perform a game changing Glyph res to swing the fight back in their favor then there should be an element of skill in performing this task. Such as, kiting to no ports to counter a Thief's steal, prioritizing a teams positioning. Not just pressing 2 buttons in the middle of a node or teamfight.
Now, I'm not blaming players for using this, its in the limits of the game so I get it. I am blaming ArenaNet however for not fixing this (among many other problems) in a timely manner.
Every single PvP player I have spoken to about this issue agrees that it should not be in the game. Can we please get this bug fixed soon!?