Edit: Only in a language group like rubyists do you see quick adoption and change and for many applications this isn't always great I'll take stable libraries over ever changing applications any day.
Now, I'm not sure if he still thinks Python is dead or not, but that's not what his post is about. He was just stating his opinion that Python has a "[...] fundamental design flaw: a syntax which requires human compilation."
Python is not dead. Python is hurting from a bad design decision that doesn't let multiple interpreter implementations share components that they could have. This makes it impossible for minimally maintained branches (like Jython) to keep up with the language, and so hard for better-maintained branches (like IronPython or pypy) that it necessitates a moratorium on the syntax as a whole.
I still think python's focus is in a slower world and as a python user I am okay with that.
As many others have said, changing syntax is really one of the most trivial parts for alternative implementations to keep up with when moving to new versions. That "hurt" hasn't been fixed because it doesn't really hurt very much...
Yes, Python has put a moratorium on syntax changes in part because IronPython, Jython, and pypy aren't keeping up with changes. As felideon points out, I regret saying it's dead - it's just that syntax innovation that's dead (and only for a little bit), and that's a shame.