Why people who use controllers don't have a proper mouse adaptation?

[Flip Face]

Why is it easy to say but not do?

Dragon Age Inquisition 

Where you can move a scope over the ground and mark an enemy, place a wall of ice on the scene and position your party members in strategic locations, while the game is in tactical camera.

The Telepoof could be a mark on the floor where you could decide where to go.

And even though this example isn't dynamic, as it's a mode that can be switched between standard gameplay and tactical camera, there are other analog stick examples.

Lego games have a crosshair type.

Like the first lego batman game (and most [I think] games in the lego franchise).

However, in this one, the character remains immobile when marking his targets, which in DST is not interesting.

And in Avatar - The Last Airbender: Into the Inferno. To be able to bend elements or throw objects there is a aiming mechanic with more depth and freedom to interact with the environment.

OKAMI has it too, then? (I don't know, I'd just like to bring up this discussion).

Spoiler

Forget OKAMI, I was just having a hard time thinking of a better example.

EDIT:

I forgot to mention that the fact that the DST camera is somewhat "Fixed (even if at various angles) " moving a character and a crosshair at the same time doesn't seem to be a problem.

Also, it's not as if this crosshair was present all the time, just if that was the player's intention.

Thanks for reading.

[Flip Face]

If cross-play is to come, how should we not hope that this stark difference between platforms doesn't make the DST experience completely unfair and frustrating?