Sorry, random syllables didn't coalesce into "Fantasy Heartbreaker" from nothing. It originally was two words being used together -- "Fantasy" and "Heartbreaker", each of which had meaning. It was two words that they used as a term, and now that term holds on it's own even if $3/4mil (so far) KS isn't a "Heartbreaker".
Like like claiming "Fast & Furious", which now refers to a film franchise, wasn't originally the words "fast" and "furious". Simply not true.
Someone coining a term doesn't mean the words in the term weren't picked for their meaning.