I read only bits and pieces of the OP post for this topic. But from what I can infer, the JP blogger is concerned why the game's end-game content is set so that one mere crack will explode through and shatter the group's progress.

Metaphorically of course, the crack resembles any foul ups and mistakes. The subsequent explosion that surges through being the chain of chaos that ensues when party members start dropping like flies.

I agree and disagree with the JP blogger's view on end-game content. Both on the new and latest as well as the old.

The parts I agree on are that despite any changes, patches, updates, and fixes... something such as T5 is still content which demands perfection. No matter what your iLevel is, or what level of Echo buff you obtain (let's say in the near future echo is boosted to 50%, as an example), not being able to do Divebombs, Conflagrations, and Twisters properly will result in a highly probable wipe that is unrecoverable.

But the parts I disagree on are that content (such as current end-game content like SCoB or Titan Extreme) does not need to change. The reason for this is because I always say that had I been perfectly cloned 7x times, I could do various end-game content near-perfectly. To me, current end-game content is not at all difficult. But it is work, perhaps tedious work as some may remark. "OMG, you have to this, and this. Then when he readies that attack, you have to move over here. Oh yeah, can't forget to face this direction with my camera so I can see what spawns in that spot."

That's the problem with end-game content. People do not want to work for it. They don't want to fight the Naga boss on Second Coil of Bahamut: Turn 2 with the numerous "put your left foot out, put your left foot in!" They don't want to stop doing actions on Rafflesia's Blighted Bouquet. They want to do the content and reap the rewards, but not at the cost as demanded. They just want to stand there and mash the three buttons on their hotbar while doing minimal movement. (Whooo, high-efficiency!)