Remember the days when a flaw was a flaw and an exploit of one of these flaws was an exploit? Now-a-days people and vendors throw around Zero-Day Flaw like it's a marketing term. There is no such thing as a flaw, only updates that add features and "enhance security" and emergency hot fixes that plug zero-day flaws that hackers somehow create. I predict that the next generation of marketization will be the dropping of "flaw" and reframe the term as Zero-Day Hack. This way there is no implication of a flaw.
To me, this is akin to people using the word "opportunities" for the word "issues", "issue" for "problem", "not being truthful" for "liar".