Yuvi was woefully out of form and that is what led to his axing from the Indian team. Since his return back from cancer treatment, he looked out of sorts, totally devoid of energy (on the field and even otherwise, in batting, etc.) and all that led to his downfall. Even in the IPL, he looked down (barring 1-2 innings). To his credit, he has recovered during the domestic tournaments and therefore is brought back into the team. And also more so now since the World T20 is happening in India where Yuvi's spin can be very handy. The very fact that Raina and Dhoni often come ahead of Yuvi tells you how much Yuvi has fallen. Even today, he looked out of touch till those two shots which brought the life back into his game and memories into his fan's minds.
Indians haven't forgotten his heroics in those two tournaments. But that doesn't mean India is obliged to carry him around forever.