I disagree. The easier class still wants the opportunity to participate and raises cane when they can't, but honestly it's more often that the harder class is the one that doesn't get to participate.
It's usually the class that deserves the spotlight that gets left in the cold.
Bard is probably the simplest, safest dps to play, but people love them a lot more than monks and dragoons.
For much of Wrath of the Lich King, Druids and Paladins were the best tanks. They were easy and simple. Warriors were a lot like paladins but harder, and the differences made them weaker. DKs were their own breed and Blizzard had great difficulty making them equal without making them overpowered.
For much of FFXI, Paladin was a better tank than ninja, because PLD could sub nin. In that era, high level enemies just didn't reliably miss so both tanks were consuming shadows equally fast. The difference was that when a paladin's shadows were down, he still had strong defense, Flash (really potent short term blind, if it landed--way more potent than XIV) and a good collection of JAs. Ninja was harder to play and Paladin was still the better option, and that's not counting Aegis and rofl-Ochain.
And let's be honest, most players think they're a lot better than they are.
@The guy below me: Quit calling our skills broken. Awareness is the only broken skill.