Twinfinite Interview

[Stanelis]

But there is a problem which is once Meta sets in the "gameplay related diversity on an individual class scale" becomes almost non-existent because people become expected to play the Meta way of things. People can try to be "diverse" but if they don't follow the meta they will become a outcast because they are not "meta" for the specific content.

That's why in well designed games that have customization on the player's scale, several situations calls for different builds that can coexist. If there is only one gameplay situation like in FFXIV (where every boss start to be similar in terms of gameplay), that cannot work, but if the game is well designed and has several gameplay situations (like different types of encounters), it perfectly works out.

Also you could imagine customization to allow the same class to perform several roles (as an example, war could have talents to be either a DPS or a tank depending on the player's choice).

Look at other games with talents points and how people will kick you for not having the best build.

Nobody is saying that you should be able to put point randomly and still have the best build, but that there should be several options for several gameplay situations (of course, the options must be logical and easy to grasp without having to read guides). It would also allows for classes to be more specialized in what they do, allowing for better flexibility in encounters design.