It's a mindset thing too imo, although 100% agree that poor technique is the bigger problem. For about 2/3rds of their first innings Australia were barely scoring 2 an over, and quite happy to do so with the aim of cashing in as the ball gets softer and the bowlers get tired. Too many England batsmen struggle to get away from their ODI and T20 thinking, as soon as a run of dot balls happens they start to panic and look to play at balls they should be leaving.