I suspect what this points to is that Apple doesn't have automated testing and they need a bunch of old school "hands on keyboards testers" to run a test case list that takes 4 days.
If you find this 'totally unacceptable', my suggestion would be to either go join them and help them improve the situation or to move to another OS. Bitching on the internet merely indicates how little experience you have with the trade offs that need to be made when pushing latge volumes of software.
Uhh no, we're customers. I don't find it unacceptable but if I did, it's within my rights to say so without "help[ing] them" as I pay the Apple Tax happily and repeatedly.
So call some employees in!
The early days fiasco are long gone and the SDL (http://www.microsoft.com/security/sdl/default.aspx) has performed really well.