Fractals Icon
Because fractals are considered a type of “dungeon” content. So if fractals were given an icon, it would likely have to be included in a general “dungeon” icon. And (as you mentioned) some dungeons require pre-requisite events to be opened, I’m not quite sure how that would work.
Further, if it were solely a fractal icon, what else would you put onto the fractal page aside from your personal fractal level, setting the fractal level and enter button? It just seems to me like that would be a lot of development for something that won’t fundamentally change how fractals are opened.
I like the idea, but I just don’t see it happening (but hey, who knows – there is a fractal update coming with Heart of Thorns, perhaps they will implement it).