I wasn't questioning the basic premise that good footwork is essential against decent spin bowling. Just your assertion that the batsmen were not coached in that manner. Sometimes the bowler deceives you - it is as simple as that.
(this will sound patronizing, so apologies in advance...) but:
That analysis is far too simplistic, and gives way too little credit to Ashwin, who is a very fine bowler, at the top of his game. Jennings will have known all about 'getting out to' the pitch of the ball, to counter any turn. He...