Because it's a final fantasy mmo? a lot of people were thinking ff14 would be similar to ff11 but with better combat and better graphics. Since ff11 was developed for ps2 and ff14 was being developed for ps3 and pc. What we got was a disaster, which was alleviated by copying WoW to some degree. But now they copying all the hand-holding crap that a lot of people don't want.
What you are suggesting would be similar to making tekken 7 play like street fighter, then telling all the pissed off fans to go play tekken 5. Pretty rediculous if you ask me.
EDIT: I think for my opinion. This game will prob need more stuff at max level than just 1 relevant raid and roulletttes if it wants to keep people playing. If they can't come up with something that is fun, then at least throw in stuff from ff11? We will see how palace of the dead goes, but if it's only 3 hours long i fear people might grow bored of it fairly quickly.