I agree on ashwin not being a wicket taking option in t20 but I still feel he has an important role especially with added batting impetus. Like today I thought he was very good and should have picked a wicket of shan masood if not for spider cam. I feel he is underrated.On bowling, Ashwin will never a match winning spinner in T20s. At best he is great to have if you a spinner like Axar or Chahal doing damage and then he will pile on the pressure even more by not leaking big runs. I actually have more confidence in Axar coming good. Too early to count him out on basis of one over. I am surprised you think there can be a such a direct correlation between IPL and T20 WC. No side with Boult like player at number 8 is getting to final in this tournament. Batting depth can win you games easily. Only reason Pak got 159 today despite that middle order collapse is because of their batting depth. As it is our batting depth is bad, Ashwin at 7 would be a crazy move and put even more pressure on DK and Hardik in later stages of the game.
Temperament required for tests is different that these kind of limited over games. At the end of the day he needs to perform in big games, especially chases to fit the billing given him. I will believe him as a match winner when I see it. Personally I would rather have a less consistent Shaw like batsman up top who is going to destroy attacks when he gets going. We saw the impact that can have in NZ game.
I think Pant getting dropped from 11 is deserved given his lack of form in T20s but I also think he is one of our better attackers on pitches that seam or bounce more than sub continental ones. If he was in any semblance of form, he would 100% play over DK given we badly need a left armer in middle order.
We should make the semis now, especially since we are more likely to bank big RR wins against fodder than Pak. So even with loss against SA, I would be confident of making it.
Having said that I will never have ashwin in 5 down. Only way I would have agreed with that is if one of our seamers were also capable with the bat then fair. I won't be surprised if rohit plays Ashwin again in the future matches.