If you go on the mage forums people are convinced we are just the int buff class and we have no other purpose even though frost is very strong in m+, fire very strong in pvp and all fine in raids outside mythic.
I suppose your healing and ranged is poor because of the cross over with agility and int? Would explain why boomy healing is so strong.
Still mass entanglement is a strong one for pve and the only melee class that has the ranged option like yours I can think of is survival hunter and that’s on a cd.
I hope things get better for you all, could be worse your still above all 3 mage specs in BoD rankings!