cthulu mean't that if you drop him he allows the group to escape by buying them time
which they do ANYWAY.
if you pull him up all you get is a stink eye of kenny and clem is thankfull for a few seconds before she asks about her parents.
so regardless of how much stupid shit ben does you going to keep saving him and letting him live ?
goes back to my previous point about sooner or later there's going to be no one left.