Is Sehwag not experienced enough. The question is not of experience. The question is that of commitment.
The number of boundaries and sixes matches exactly with the SA innings. What was lacking was the ones and the twos - no one needs experience to do that - One needs commitment and dedication to run those singles and twos.
Unfortunately, the indian cricketers are a bunch of lazy characters with commitment and motivation levels so low that basics are forgone, forgotten.
It is a pity to see young players displaying a lack of courage, stamina, commitment and application.
Mr. Sehwag, fact is - You and your team as of today have downgraded yourself that you don't have motivation and dedication to run for your nation and rather choose to stand and deliver the boundaries hits. While this is OK, it involves a lot of risk and often results in the team loosing quick wickets - which is what has happened.
Go and tell your story to someone else. We Indians are not fools to believe in this nonsense.