The phrase "rhetorical excesses" refers to using exaggerated or extravagant language to make a point in communication. It means going overboard by being overly dramatic or using excessive words or expressions to emphasize a message. Full definition
Rhetorical excess seems to have stunted Mr. Reynold's ability to do basic math here. (hudsonvalleyone.com)
The first anniversary of Eric Garner's death on Staten Island arrives next week, an event sure to be accompanied by rhetorical excess and unwise policy... (nypost.com)
Of course, such rhetorical excess limits the ability of Professor Quiggin to denounce the rhetorical flourishes of others. (johnquiggin.com)