Like i said before most of the other spinners haven't been up against three of the top four sides in the world!!
, so your argument doesn't hold up i'm afraid, had Benn have faced Nz, Bang and Pak in that period there's a good chance he would have had much better stats like the others.
And what do you mean "his performances between then"?
we played England away of which none of the players performed because they said it was too cold and then the players went on strike!!, his next Test was against the Aussies.