The BCCI doesn't allow Indian players to participate in franchise cricket leagues around the world, which limits their exposure in a big way.
The Indian team was playing in a bubble with their performances only in the IPL or series within the Big 3. This bubble was badly exposed when they had to play against the top talented teams like Pakistan. BCCI should need to revise their policy otherwise they will have to face similar situation whenever they will play big tournaments.
They are afraid of losing with their neighboring country and hence they prefer not to play at all.
There was no bubble it's just simple they play bad in 2 early games and lost out and down now they are going to start with new things surely these are going to have some big impact on them and their strategy for future games. I personally respect Virat as player but as captain he has done very bad things in last few years it's good for him, he already leaves and now new captain can handle team in better way and Virat also can play without any pressure which help him for better performance.
Many times Virat done serious mistakes in selections which cost India very badly today I was reading on one site writer was saying he was biased with few players and I have to agree with him in this case because his poor selection hurt Indian team very badly in many matches.