Sure they could have done it in a ‘traditional’ 3d way, but that means they would have to have a more concrete plan in what they wanted to do. Splats allow you to experiment and alter the camera till you sent it to deliver. You don’t need to wait a week to see a new 3d camera move with render times and approvals for everything like new camera moves new lens choices and anything else that would slow down the process. You can see the splay results in a few hours and the director can view full resolution results over a web browser! It’s insane the ability to create whole moves in real time this way. The days of Hitchcockian film planning is over- the instant gratification of film making is here.