4fg + the 30 people who are already defending can make a big difference...
But don't come and blame the dev for your choices.
IF you think mid mages are boring, come and play mana chanter. In 8 man, you do debuff cold, debuff heat dd dd dd, rince and repeat.
It's the same for mentalist, it's dd and demez 99% of the time. The eld has more tools, but the rest is not that better than you all think.