Why not take responsibility for that instead of complaining about an honest review?
Every volume product has failures and a single datapoint is not enough to say anything about a product's quality (good or bad). At the same time, a failure during a review is absolutely something that should be mentioned, as well as given an opportunity to test the company's RMA process. At the very least a failure like that should cause someone to look into how many other's online have similar issues.
Eh, what? I've received products that needed warranty repair/replacement from Apple, Toyota, Philips, Nintendo, Ikea, Breville, etc. (All of those examples which provided good service in repairing/replacing the product in question.)
A single data point of a broken product doesn't tell you anything of value.