In my opinion, flame barrier isn’t of any use at all and both are just traits that are a leftover from a time when of the class was previewed. Seriously, look it up, there are previews that mention the elementalist causing mayhem when attuning to each element, punishing people when they hit the ele, etc.
What’s bad is that both traits are based on getting hit—something that you don’t want happening with the low base armor and health.
What’s worse is that one trait increases the effectiveness of the other trait over time while attuned to one element yet the elementalist is expected to change attunements often.
Flame barrier and one with fire, in my opinion, should be reworked or replaced because they offer no defensive, offensive, or support benefits at all. Besides, what can a one second burn do to a melee attacker-assuming the RNG is in your favor and actually triggers?
Edit: Also, op, do you think you can add " :Thoughts " to your title so it can be a bit more clear?