The author makes it sound like an exploit, when found, is a magical object of wonder that was found by extreme luck and skill and thereby, if ignored, will cause no problems... in fact, from spending a lot of time with the kinds of people who routinely find an use these kinds of bugs (iPhone jailbreak scene), I feel pretty confident saying: in exploitable bugs are extremely common, they are often easily findable by people with relatively little programming experience (with fuzzers, or even just normal usage), and in most situations (normal computers or even small devices that do not spend inordinate amounts of time on anti-exploitation measures) do not take rocket science to exploit... in a world with these properties you have to assume that "the bad guys" already have the exploit you just found, and thereby any time the vendor spends obfuscating the bug fixes (which this guy claims is somehow important or useful) is just increasing everyone's risk.
The quote "Vendors are motivated to protect their profits and their shareholders’ interests over everything else." misses the point. You cannot build share holder value over any extended period of time by screwing your customers. It is cheaper in the short run not to patch flaws but completely detrimental to you long term image. Just look at Microsoft who is still seen as the poster boy if insecurity despite nearly a decade of security reform.
