Why in the world did they making a healer's main method of healing UNSILENCABLE was a good idea? WHM and AST get destroyed if they get silenced or have to burn big cooldowns just to save people/themselves.

Meanwhile, you silence a SCH and it DOESN'T AFFECT THEM AT ALL. SCH do not use physick, it's a near worthless spell, the vast majority of their healing is done through lustrate. Ask any top SCH player and they will likely tell you they use physick maybe once or twice per match They're the only healer that only has to worry about stuns interrupting them, knockbacks/unmend don't do anything because lustrate is instant and silences do nothing because lustrate is an ability.

Not making at least some INITIAL BALANCE CHANGES before the season when they had 2 months worth of matches to look at was a horrible, horrible mistake.