If Arcanist - including both Jobs for it - needs tweaking, it will most likely happen. SE has been really good at following player's feedback. They took a lot of players contributions and suggestions into account when they tweaked some stuff.

You all have to remember that Arcanist/Scholar/Summoner was not tested in a CBT. All this stuff that most of you are complaining about, is basically the first true feedback for the class. Just let them solve the server issues then they can start to look at players suggestions.