And the point is the majority of the community HATE it.
You're literally saying hey, there is this bad feature you guys did that almost everyone hate, please create more of it.
Being optional have zero relevant in this context. Deep dungeon is optional, criterion is optional, map is optional, Diadem is option, crafting is optional, relic is optional ..etc.. I can choose not to them, but when I do choose to do them, I can access them
at will. I don't have to join an FC and be at mercy of the people running it for a chance to do it.