A funnel assumes a corridor. People enter, some leave at each doorway, a few reach the far room. Plenty of products are not corridors. Sandro’s lesson booker had a language picker in the middle of first-run that sent families back to the start. A funnel called those families “drop-off.” A map called them a roundabout.
Nino draws a map when the recordings show return paths, skipped doors, or a screen that is visited from three places. She draws a funnel when the flow really is a corridor — a ticket payment after a seat is chosen, for example — and the only question is where the line thins.
Mixing the two in one picture makes a briefing noisy. We pick one shape per page. The key says which days, which people, and whether a loop is counted once or every time it happens. That last choice changes the story. Count a language-picker loop every time and the picker looks like a crisis. Count unique families who looped and you may see a smaller, fixable stall.
If a client arrives asking for “a funnel of everything,” we will still ask which corridor. Everything is not a corridor. It is a building. Buildings need maps, and maps need a named floor.