When you have the unique ability to plunder any bowling attach and have done it effortlessly for years then you can be forgiven for scoring only 1 second innings hundred.Sehwag is in a different league.
No, no it doesn't protect him from criticism! Bar Laxman and Gambhir, they're all poor in their 2nd innings!
Tendulkar: 43.08, down from 56.11, 10 out of 48 hundreds.
Dravid: 43.53, down from 52.86, 5 out of 29 hundreds.
Sehwag: 30.80, down from 53.90, 1 out of 21 hundreds.
Dhoni: 38.52, down from 40.82, no hundreds (doesn't bat above 7 most of the time, so he's less culpable, plus he normally rearguards because of the above failures.)
Laxman: 50.47, up from 47.40, 5 out of 16 hundreds.
Gambhir: 54.04, up from 51.36, 5 out of 9 hundreds.
Yuvi does well out of it as well, but he doesn't get enough of a game.
If you ask me, it's time for the old legends to move on, Pujara, Mukund, Kohli, Badri, Rohit, Vijay, etc. To get a go...