Because the workshop happens in a separate tool and the output is a photograph. By the time anyone builds from it, the reasoning behind the arrows is gone.
A whiteboard is a shared canvas attached to a project, for the mapping and sketching that happens before work is broken into tasks.
Boards attach to the project and stay editable. Items can be turned into tasks directly, so the move from sketch to plan does not go through a retyping step.
A process-mapping session produces fourteen steps. The ones that need building become tasks with estimates, and the board stays attached so the shape of the whole is still visible.
It is not a design tool and does not pretend to be. It is for thinking with other people, not for producing artwork.
Tasks created from it join the plan; the board can be linked from a doc or exposed to a client through the portal.
Yes, live, with each person visible.
Through the portal, on boards you share with them.
Yes, selecting items and creating tasks in one action.
Fourteen days, every module, no card. Or half an hour with someone who will run it on your own records and tell you where it does not help.