Poor girl.

Debuffers and Crowd Controllers always get way more of a prejudicial beatdown compared to their hp-reducing counterparts, probably because it's due to the player venting against the poor NPC that DARED to waste a player's actions, even if doing so didn't actually hurt you.

It's not so much "wasted their actions". Clerics represent a very real battle screw, where either additional mobs are summoned (zombies or demons), to healing someone to full health that represented a major problem, to buffs and debuffs, to status effects, to revival.

For a usually non-attacker class, clerics are very very broken. One can turn the tide of battle, two can make the enemy party invincible until they are dealt with (and a few tanks can effectively guard those against direct attacks). And if clerics can revival each other, a difficult battle becomes that much more frustrating.

Likewise, crowd controllers can often literally control crowds (suggestion or dominate), in addition to AoE spells that weaken crowds or outright nullify the effect of minions.

In fiction, while the tank tends to monopolize the screen more often, the shapeshifter character (like Bon Clay or Kurozumi) or a character that can transform characters (Sugar), the party has a "too dangerous to spare" reaction. It is pretty difficult for a party to give mercy to a character that is able to mess with them this way, far more than a simple warrior type.

He's talking about Ms Painter who spent the combat stunlocking Luffy.