That Key has seen fit to make reference to such realpolitik so soon following re-election in a speech which is otherwise normally just a long shopping list of policies is both a reminder to himself and his Cabinet and caucus colleagues of the paramount need to maintain self-discipline and not get out of touch as it is a warning to Opposition parties that they will not necessarily be able to rely on National burning itself out as other Oppositions have been able to do so with other third-term administrations.
The message for Labour is especially chilling: even if you get your house in order, you may be no better off. National favours blandness over audacity because that is the way voters currently like it.
In that respect, today's speech contains precious little that Labour would argue with. The only viable line of attack for Labour and other Opposition parties is that in terms of action, the speech does not go far enough, be it lifting New Zealand's woeful level of spending on research and development or listing practical measures for easing child poverty.
It is here that National is vulnerable - as are all third-term governments. The voting public imposes higher and higher expectations on such governments to deliver more and more.
The last paragraph of the speech, however, is indication aplenty that Key is well aware that failure to meet those expectations is the real threat to his and National's longevity in power, rather than a revitalised Labour Party.