Undeservedly

It is not undeservedly that the Pyrenean guides have acquired the reputation they enjoy for intelligence and civility; and Charlet, of the Hôtel de France, is certainly a most favourable specimen: frugal in his habits, modest in his demeanour, and of great activity of body, he forms the beau ideal of a mountain cicerone.

In his opening pages he defines snark negatively — as a practice that certain famed comics are often charged with, but undeservedly and inaccurately because they actually trade in “irony” and also, one can’t help but gather from Denby’s remarks, because they’re politically virtuous in their japery, even when their words seem cruel and harsh.