A nicely turned phrase will capture the imagination in a speech. An unusual metaphor, a striking image, a carefully crafted alliteration will stick with the listener for a long time.
But using it again and again mires the art and leads it to cliche.
Noting That the Speech-Writers Are in a Rut
Who would have suspected that a reporter might delve into the archives of Bamster speeches and find that when everyone in a weight class is punching above their weight then you may have mis-under-estimated the punching average of that class.
Polite listeners will not point out the level of snobbishness in telling these European Scandinavian countries that they are somehow in a lower class of competition among first tier nations.