Why is the Aran class so unpopular?

Beyonder is troublesome to cast. [...] increased amount of HP because we are not archers we are supposed to be attacking like a frenzy man.

Both these things drove me away from it - with a Hero, you press the 'Raging Blow' button once and you get a strong attack. With an Aran, you press 'attack' 3 times, then an arrow, then 'attack', then 'beyonder' 3 times. And the final 3 attacks of this 7 attack sequence do good damage.

Alternately you spam 'down, up, attack' 3 times per second, and when you let go it doesn't stop shooting them off.