While I can see the reasoning for doing something like this. If India are just going to bring across an A standard side rather than a proper team it will kill most of the interest in the match.
The South Africans themselves field very different teams for T20Is from their regular Test/ODI teams- in the last T20I series, they played without Smith, Kallis, Boucher, Steyn and Alviro, all Test regulars. I wouldn't be surprised if they play an even lesser side for this event. It's about Kallis, more than the rest.
Besides, given the problems the Indians face due to too much cricket, too much touring and too much IPL, they're better off resting their leads and giving the T20 domestic blokes a chance. It makes more cricketing sense.
But it seems they don't have much of it. They've sent an
overworked, struggling side with minor changes for the event. No point picking Dhoni, Gambhir, Raina, Jadeja, Ashwin, Praveen and Vinay after this tour. Most of them are not even good enough for T20 or just don't fit in there.
I mean, what's wrong with this alternative side? Saha and Irfan opening, Yusuf to follow, then Rohit, Surya Yadav, Uthappa, Dinesh Karthik, Sid Chitnis, Valthaty, and three made-for-T20 bowlers- Aravind, Yo Mahesh and Rahul Sharma. Fresh alternative from the worn out Dhonis, Kohlis, Rainas, Gambhirs and that Jadeja.
The main draw will be Yusuf Pathan. He'll be the only one that matters in T20.