Good Points.
In fact, India was busy with IPL T20 for a long time, so they can't prepare well with Test matches. Moreover, after batting for a long time in the T20 format, their focus became the focus of the T20 style. Because of this they lose their complete concentration in the test and they leave a sign that their concentration is distracted when they come to the end. They fell by seven wickets for just 70 runs on the fifth day, showing their focus was not on the full Test format.
Indian players are right in focusing on IPL since the return is too much. BCCI should adopt a policy where there is separate squad for Test and T20I.
Moreover, there is fine on both India and Australia for maintaining slow over rate in Final of WTC. India will lose 100% of there match fee while Australia will lose 80% of there match fee. I dont think this will have any impact on rich BCCI and CA they can easily bear this loss. Between how much is match fee for this final ?