The problem is lies also within the design philosophy in this game.

Why reward a bad player when they play to the worst of their abilities? People adore this aspect of equality, but it also leads to the stagnation of skill and therefore comes the self-fullfilling prophecy: as standards increasingly lower over time, it eventually bleeds into other aspects in the game. This is why you will find fervent advocates for lowering the skill ceiling for almost anything. It's a statement you set that you can be coerced as a developer. Why should I give my best when player B plays worse than someone that has never played an MMO? You would think it's the developers setting the bar for expectations, but alas, it's the majority, the playerbase that is dictating the future of where the game is going. Does that have to be a bad thing? No, in its self-contained reality it's logical even, given they want to maximize profits. But comes with a price to pay, which is the degradation of content by people that have absolutely zero idea of what interesting and engaging gameplay looks like.

Now for difficulty. Hitting the same enemy 100 times is not difficulty. It's the equivalent of setting the difficulty on the highest possible scale, but ultimately fails to deliever critical components which define the progress and value of choosing a challenge. It's called high-risk, high-reward. That means if I decide to take on this challenge, my rewards will increase significantly. What the game currently does however, is in stark contrast to this philosophy. It doesn't matter if an awfully bad Red Mage ignores using their AoE rotation, or if your Summoner plays their job perfectly. The results are always the same, and apart from the timer you won't even be able to tell, unless it's a painfully slow experience.

With that said, the standards should be set high. A good player is worth a 100 bad players, effectively the only contradicting point against this is the fact 100 players are financially more worth than 1 player. Which do you choose? Money or the slow death and degradation of everything else? The fact of the matter is, greed is the end of all. You cannot please everyone.