I recall it a bit differently, in that incident where someone was jumping up and down on a mark as the rest of the fleet rounded them and the mark, they being effectively one and the same.

Per the story I heard...
The boat clear ahead was heading for the leeward mark on a deep course but on a layline. The boat clear astern was sailing a much hotter angle also on a port tack layline, albeit a different one. As a consequence of the ongoing relationship between the two boats and the mark, the leeward mark was essentially masked from the view of the 2nd boats helmsman by the boat ahead. As overlap was acquired boat 2 hailed "room at the mark". Boat 1 bore off hard to give boat 2 room. Only then did boat 2 see just how close the mark was. Boat 2 bore off hard but it's fate was sealed. It was moving too fast. The mark was too close. To some additional hails of "oh $%#$%" and "*&^%" boat 2 took the 6 foot tetrahedron between the hulls at speed. Boat 2 having significantly slowed, boat 1 then completed it's rounding of both the mark and boat 2 and went on to complete the course, and perhaps even to win that particular race.

Anyway, that's what I heard.