I would like to see what would happen if they made fights be like the ones with Ruby Weapon, Omega Weapon, or Yiazmat. The amount of complaints after wiping 50 times (with no reward) would be epic.

No, there needs to be a balance and, from what I've seen and what I'm being told, I think that the game is fine as it is right now. Also, I agree with the fact that nerfing prior content a bit when a new tier is introduced is good, as it helps the rest of the playerbase to see said content (they pay too) and catch up.