A single game can't please everyone, pick and choose what type of game it will be.
That depends, different game modes can be made to cater to a different parts of a community. No single game mode will please everybody, but a combination of different options can make it that everybody can find its thing.
A game can have specific versions that cater to different sections of the community. Aka there doesn't have to be one version of RO that tries to please the entire community.
For instance you have relaxed realism and realistic realism and other server options. You have countdown, territory, and fire-fight. You have public players, clans and realism units. You have infantry people and tankers. People that like close quarter combat and long range combat. etc..
You can't make one setting that everybody will like, but you can give the option for server differentiation. So communities that are incompatible with each other, can do their own thing on their own servers.
So while maybe a lot of players might like to play the most unrealistic version, you do not have to hate them for it. As long as there are enough people that play the version you want to play. Having a big group of players is an advantage for all players, as more people spread the word for the game, which will bring more people to all the sections and communities.
Heck as a player I primarily care for the competitive side of things, and then especially where there are multiple caps to cap in a capzone and respawns. Yet I'm a supporter all sorts of features that go against the game that I want to play yet I know a lot of people love, as long as I can turn them off.
The game would simply go from a game created around a niche community, to a game with different niche communities within itself. There is no right or wrong here, just different preferences.