Yes ,you are right. Indian team performed very bad. In my opinion,if target would be 300+ then it would be very difficult for Australia. In Final match, 300 score is big score to chase. But India can't make handsome score to defend. When Australian 3 wickets fell ,it seemed India will caught Australia batsmans under 200 score but Travis Head and Labuschagne played very well and they made a good partnership and they snatched the match from Indian players.India is best team but Australia also proved that they are king not in only home ground but in also Indian ground,Ahmadabad. Mohammed Shami didn't performed well in Final match.
Australia benefited the most from winning the toss, and therefore invited India to bat first as they managed the pitch well. They knew that the pitch would be favorable to the bowlers at the beginning of the match.Australia bowled early and took full advantage of the pitch and restricted the Indian batsmen to a very low score.
I think the whole blame cannot be put on the batsmen, because while the pitch was favorable to the bowlers, the Indian bowlers also took advantage of the pitch and dismissed three Australian players early on. Warner, Marsh and Smith all these players are not ordinary batsmen but very good batsmen. When there was nothing left for the bowlers in the pitch, then a batsman like Travis Head also became heavy for the Indian bowlers. Whose previous record is not better than the three players who were out.