Oh boy! Who is Jon Paris, and what is this article? It's as if somebody was writing about python circa 1997.
I'm a 45+ year computer professional and spend my waking hours trying to introduce my peers to new concepts. Python is not news to me, but it is new to the IBM i as an official offering. Note "AS/400" hasn't been made for over 15 years.
Very odd. It's like somebody's been hiding in a cave since 1995 and just discovered python, object-oriented programming and HTTP.
Been writing web programs for over 20 years. Done Smalltalk, Java, PHP, ... But like many of my peers find it hard to "think" in OO and have never had 6 or 8 months to do nothing but OO. Real world Procedural programming kept getting in the way.
He's previously been writing RPG for the AS/400. That's pretty much exactly like living in a cave since 1975.
That's just silly. Modern RPG IV would not be recognizable to anyone who learnt 1975's RPG . It is a good language for writing core business applications. Those boring ones that need to do precision math with numbers that have decimal places. Things like bank accounts, inventory, etc.
 IBM i is a highly integrated platform and because of that many customers are unwilling to use anything not "blessed" by IBM. I personally find that frustrating but I understand it. There has been a version of Python 2 available for many years which was ported by a group of users. But it wasn't sanctioned and so few use it.
There are many other comments I could respond to but I'll leave it there for now. Happy to continue the conversation if anyone cares.