The thing is Shukla was not willing to accept ANY criticism from Asim. I do think Asim has a claustrophic issue but actually Khesari had lined the exit of the tunnel so well while Shukla's team had stacked the entry of tunnel which meant, Arhaan's effort was only to remove the stacks while he was entering, after that it was easy exit.
Shukla's team randomly stacked the boris and focussed on blocking the entry which was a bad call. Khesari killed it tbh and Asim was right in telling Shukla that but he refused to even listen.
Lastly, during the task, Shefali, Shukla, Sana were also bitching about Asim and infact Shukla STOPPED Arti and Sana from helping him, that is a low move considering Asim was all alone on the other side 🤢
The fact is that Shukla treated his friends terribly.