The thing is: usually there's a fire plan - firefighters arrive at the building, read the code and look it up in the plan where exactly the trigger (or inlet for the aspiration tube) is. They do this insanely fast as they have been trained for this - while that security guard and the overtired technician were not.

This is a lack of training and a procedural failure - the usual configuration/process is that any alarm either automatically calls firefighters/police or via procedure the guard manually does this - immediately, not after 30min.