"It doesn't feel like Final Fantasy" must be code for "I don't have the faith to believe the writers can come up with a scenario that makes PVP interesting, nor the imagination to come up with it myself." The only things that make a Final Fantasy game "feel" like a Final Fantasy game are similarly named objects and the title. I'm not a fan of PVP either, but let's come up with some realistic arguments like catwho and huhwhat presented.
Ok, you want me to argue that this is a valid point?
Name me one FF title that you play as a villain with a storyline set of missions or has a moral choice system. The player's story has always been one where they are the heroes challenging the forces of evil, even if they did not see eye to eye. Unlike other games in this space, Final Fantasy has a bunch of hallmark characteristics, from the crystals to the job system to world elements like Chocobos. Asking them to shelve that tradition in favour of embracing a popular ideal is just selling out the franchise. That would like WoW being PvE only, since it's own backstory is about warring societies.
There's a difference between could and should. Could the writers come up with just cause for players to be at outright war? Yea, that's relatively easy. Should they come up with that? No, because that runs directly in opposition of the creed of the franchise. Look at FFXI. In the meetings with the nations, they are constantly sniping, and taking verbal swings at one another. But, when push comes to shove, they put aside their differences and realize that they need to work together to fight against the evils in the world. Sure, their plan is to just make a random adventurer with shifting loyalties their chosen hero, but I never said they were all that bright...
So you might just come back and say to me, "Well Pawk, let the franchise evolve. It doesn't always have to be all about PvE!!!" Let me ask you something:
- Did Dead Space 3 benefit from going from a tense, horror thriller in 1 to becoming generic cover-based shooter?
- Did Assassin's Creed benefit from incorporating tower defense into its gameplay instead of sticking to assassinations?
- Did Mass Effect 3 benefit from taking away all form of true choice in its ending sequence, despite it being a hallmark of the series?
Answer: No, they didn't. They diluted the experience, left players feeling cheated, and in the end did nothing to really benefit the game as a whole, or breathe new life into the series. They felt like remnants from another game being shoehorned into this other experience. Like that one stealth mission in your favourite run-and-gun action game.
So when people say "It doesn't feel like Final Fantasy", they mean "This series has never been about PvP, or playing the villain within the cannon of the story, it's always about reconciliation, redemption, and overcoming adversity by coming together, not by fighting among ourselves."