1) Then go out and socialize. They're not going to make DF server only, that would kill queue times and destroy small servers. But nothing is stopping you from going out and meeting people that are on your server to play with.


2) No because then it becomes a camping game. You saw the cluster truck that happened when Centurio Seals were the way to get armor upgrades for Law Gear. This would only be worse.


3) The "I play how I want" attitude leads to bad players. Just the other day I got ARF for mentor roulette and got a SMN who just spammed Ruin 3 and Energy Drain. No Dots. And a BLM who decided that Enochian is too hard to manage. So we ended up taking 10 whole minutes on the first boss. The entire dungeon took an hour.

There will always be a mathematically optimal rotation and people should learn the basics of that rotation at the very least or else you're just making everyone else drag their feet all in the name of "unique play style"