It is a pathetic argument made by SENA nations that preparing raging turners is "unsportsmanlike".
In the subcontinent, our youth and our players aren't exposed to luscious green tracks where the ball swings and seams so nicely. They are more exposed to flatter wickets that break and spin, and their batting styles are engineered for those pitches. You can't expect an English player to feel at home on Indian tracks just like how you can't expect an Indian player to feel at home on English tracks.
This argument by SENA ex-players that square turners are an example of poor sporting is just absurd. Pakistan vs New Zealand test series earlier this year had a track where the wicket was greener than the outfield. There was no statement by our players that the pitch was poorly made and such, but the minute the sides get flipped, SENA teams make these comments that such behavior provides no contest between bat and ball.
Michael Vaughan and Mark Waugh were making some comments on Twitter about this pitch being poor. Well chaps, it is what it is. The argument that "SENA conditions are supportive to all players" is used to cover up for their own players' cheap performances at home on certain occasions. 
Any home team will make pitches to support its players, that's how the game works. England does it, South Africa does it, Australia does it, and so does New Zealand and every other team in the world. So what difference does it make that the track is spinning or seaming, just accept it and move on. Learn from your mistakes, stop hitting the ball with hard hands, and realize that not everything will be handed to you on a silver plate.
West Indies in Bangladesh, on spinning conditions, hammered the home team quite convincingly. They adapted to the pitches, and they figured out the methodical approach to playing on those wickets. England must do the same.
The beauty of test cricket is being able to overcome difficulties caused by the pitch, and apply yourself in those conditions.