Rainboe,
does it mean
you will go off the end, no it does not, nor was this stated.
It is an example/reminder that safety risks might be overlooked or unanticipated during times of change. Those who always use reverse and might contemplate using idle instead could face greater risks.
Also, a reminder of the need to balance commercial and safety interests at a time when commercial aspects are in the news, until the next overrun.