Actually no. Cisco doesn't just bring it together...Cisco is the leading edge. You have read the Gartner report, you know the pro's, con's, strength's, and cautions depicted in the Gartner report.
Yes, SCADA is showing a little wear and tear for her age and it is time for Cisco to step-up the game like no one else can. For example US CERT released a vulnerability advisory, Jerry Brown submitted a buffer overflow advisory and other reports are troubling.
SAN has stepped in with a Best Practices white paper on the MDS 9500 and 9700 Multilayer Directors.
Another player is the government, looking over the shoulder of NERC/CIP. Yes, you did mention them although they simply project power with lip service and intimidation; a proactive stance is the only answer and again Cisco comes forward.
The moral of the cat and mouse game; CIP's v6.
I enjoyed the piece Mr. Agarwal, I hope NERC is watching.

There's a new Sheriff in town.