If each MapleStory class was a high school stereotype

Why the pomegranate are bishops cheerleaders?

because cheerleaders cheer on and motivate their team, and bishops are the main party skill class

There is nothing to back this at all.

Before Big Bang, DrKs did more damage with less HP, and a lot of their skills reduce their HP. Mostly based on the stereotype of emos having pleasure from hurting themselves and slitting their wrists