India has been dominant at home but who is not. Take any of the top 4-5 teams, they have not lost home series. There have been few exceptions like England beat India at home was a disgrace. But otherwise every home team generally dominates at home 9 out of 10 times.
Dont know why it is a huge topic of discussion. India's away record has been dismal but have still retained some top positions in ICC ranking. I dont mean they shouldnt improve, but also remember, the current team has collectively not played 200 tests... will take time. Bhuvi, Shami etc are talented but they cannot be compared to Styen, Morkel etc. ... it will take time and there will be some tough series ahead..
I think SA should be more worried after losing to Pakistan.