Your idea is 100% true and everyone will agree with your idea. If the Indian team management had given importance to the team selection and chosen to bowl on the Ahmedabad pitch, they might not have performed so badly that day. Rahul Dravid's team selection was not wrong, but they should have considered the spin on the pitch that day. Only Virat Kohli, Rohit Sharma, and KL Rahul's contribution was noticeable that day but others contribution fully zero.
I am not sure whether Rahul Dravid was given 100% freedom in team selection. I was not very happy with the way Mohammed Shami was left out of the first couple of matches, and also the way they treated Ravichandran Ashwin. The current selection criteria hasn't worked well, as we have seen from the failure of the Indian team during world cup finals. I would suggest providing complete freedom to Dravid, at least for the next 12 months, and also some of the senior players (especially guys such as KL Rahul) needs to be rested and replaced with younger players.
Before this event there were few things which were indicating relationship is not good between Rahul Dravid and BCCI officials which is clearly indicating he was not in full control but still he has done good job and bring this team to the top in all formats specially having this performance will be remembered for years even they lost final but still they were best in business and few selections surely creating controversies, but now all ended after the end of this event.
But here just one failure bring many things wide open which are surely not good because they were good and on target throughout event but at the end Australian done good job to outclass them in final game now hopefully we will have completely new team for the white-ball format which will bring better results with Hardick Pandya could be good leader as well.