I suggest the difference is I, and other people I know, keep finding apple bugs so common and frequent that it's essentially clear there is no testing at all.

I suggest the difference is I, and other people I know, keep finding apple bugs so common and frequent that it's essentially clear there is no testing at all. viz the discoveryd fiasco. Either nobody there could be bothered to use stuff on a network or an exec forced it to be released anyway. Or trouble connecting iphones to itunes, etc.