Why did Chopin choose to communicate so much of her theme, or message, through the literary device of irony?

Chopin chooses irony as it added profundity to the story and made an immense impact on the readers.

Explanation:

Kate Chopin wrote The Story of an Hour. She used irony throughout this short narration to make insignificant events appear important.

For example, Mrs Mallard is refereed to have a troubled heart. This was done to exaggerate her behavior regarding different things. At another incident, Mrs Mallard is described to experience sudden, wild abandonment. This too is a perfect example of irony and symbolism portrayed by the author to make everything appear more heightened than usual.