Just to clarify your point, I believe you are referring to andon[0], the system of alerting people to an issue, rather than kanban[1], a system for inventory management.
In a manner of speaking he did pull the andon cord by speaking up in his team meetings and alerting people in Slack, but the cord means nothing if there is not a culture supporting the alert.
No, the equivalent would be as soon as he raises the issue, no one can type even one more line of code, not even a character, and their editor would be completely blocked.
That’s what these companies need. The entire business comes to a screeching halt.
And if they really needed more motivation, production servers could be shut down if the issue was not resolved in 24 hours. That will really hold their feet to the fire.
In a manner of speaking he did pull the andon cord by speaking up in his team meetings and alerting people in Slack, but the cord means nothing if there is not a culture supporting the alert.
0: https://en.wikipedia.org/wiki/Andon_(manufacturing)
1: https://en.wikipedia.org/wiki/Kanban