My short interpretation of Alex Russell's post (or certainly in my mind):

  • Apple have a monopoly

  • Safari, for over a decade now, been way way behind

  • Safari is not a modern browser - this is literally what devs and designers complained about IE6 for years.

Still, read Alex's post - it's packed full of data (as usual) and draws a clear conclusion that Apple, again, are delaying progress for the world wide web.