Looks like everyone is mad at Dinesh Kartik, commentator criticizing him, even Twitter trolling him
He played 21 twenty-twenty games in the last 3 years. let's dig his average and strike rate.
You can see how good he is and useful asset for Team India in the lower middle order in recent years and don't forget he's not a regular member in Indian Squad despite proving his worth again and again.
He could easily save himself from any criticism by taking a single during the tough time, but he chooses to take responsibility and tried to finish the game for his team just like Nidahas trophy final.
Imagine another scenario Where he takes a single and gives strikes to Krunal, who doesn't have much experience, Krunal is a good hitter there is no doubt about that. But no one can be 100% sure that he could win the match for India in this situation, everyone is just assuming that What if and if by any chance Krunal messed it up there then same critics would go gaga and say Kartik did blunder by giving strikes to inexperience Krunal.
Unfortunately, Dinesh Kartik failed this time, call it a failure or lousy judgment, but he's a match-winner in the shorter format.