She uses a perfect example of 'Black humour' and has noyhing to apologise for.

From Wiki on Black Humour:

The term black humor (from the French humour noir) was coined by the Surrealist theoretician André Breton in 1935 to designate a sub-genre of comedy and satire in which laughter arises from cynicism and skepticism, often relying on topics such as death

In black humor, topics and events that are usually regarded as taboo, specifically those related to death, are treated in an unusually humorous or satirical manner while retaining their seriousness; the intent of black comedy, therefore, is often for the audience to experience both laughter and discomfort, sometimes simultaneously.

The purpose of black comedy is to make light of serious and often taboo subject matter, and some comedians use it as a tool for exploring vulgar issues, thus provoking discomfort and serious thought as well as amusement in their audience.
Black comedy might include an element of irony, or even fatalism.