Context. Simply put their data is good if you are going to buy or have purchased one the drive models listed. If not, the data is useless unless you want to buy a specific drive model they have listed. That being said if their more than (x number of drives you plan on buying greater than the number they represent) is not qualifier enough then buyer beware.
Also, YMMV as your case may be cooler than theirs, your drive may have a unknown flaw that will lead to its demise, it may have been damaged in shipping, lightning may strike, an asteroid may strike it, all very valid things with a statistical chance.
Whining about free data is being a whiner, don’t be a whiner.